# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F Fax : (33) 5 61 93 42 51 This summary is for information only and is not approved for modification of the aircraft. ATA SYSTEM: 28 

### TITLE: FUEL - TANK - INSPECTION OF THE MAGNETIC FUEL LEVEL INDICATOR **CONF ALL MODIFICATIONS None REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES Service Bulletin A320-28-1138 (Mod. Nos 27496J1886 /38723J2944) was issued in 2005 after the reporting of several in-service occurrences of wear and detachment of the top-stops from the Magnetic Fuel Level Indicators (MFLI’s). These were found during fuel tank maintenance and on MFLI’s returned to the Vendor, FR-HiTemp (now EATON AEROSPACE). Investigation has shown that the affectedMFLI’s were all of the early metal type (pre-mod 27496J1886) where the top-stop is retained with Sshaped lock-wire. Wear to top-stop retaining S-shaped lock-wire was found to be caused by repetitive impact with the float, resulting in the complete detachment of the top-stop. This raised concerns that a detached top-stop could come into contact or close proximity with a probe, compromising the air gap between probe and the structure and creating a potential ignition risk in the event of a lightning strike. There are three different types of MFLI’s which could be installed due to interchangeability (ICY) condition and each type has a different method of retaining the top-stop, these are: - an early metal type of the series Part Number (PN) 3508802-XX series, where the top-stop is retained with S-shaped lock-wire - a later type of the metal type of the series PN 3508802-XX series, where the top-stop is retained with a trapped wire - a composite material type of the series PN FRH05000-XX series. This was introduced by Mod. No. 27496J1886 where the top-stop is push fitted on to a moulded end retainer and the retainer is adhesive-bonded to the outer tube. The modification Service Bulletin (SB) A320-28-1138 directed that any MFLI of the S-shaped lock-wire must be replaced within 6,500 Flight Hours (FH) of the Airworthiness Directive (AD) effectivity date with a post mod. design and any detached end stops located and removed. The SB also gave instructions to do a visual check of the internal bore of the MFLI’s using an endoscope or an equivalent device to determine which type of MLFI was installed. DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 1 7

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# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY The effectiveness of the inspection procedure (visual check) detailed in SB A320-28-1138 has been brought into question following the discovery by two operators of MFLI types which should have been removed by the SB. An investigation was carried out and considered: - Operator feedback - SB retrofit records - Vendor records - Availibility of parts for airlines - Questions from operators during embodiment of SB A320-32-1138 collated since 2005 - Maintenance records of other operators from the SB. The conclusion of the investigation was that the Design Office (DO) could not prove that other operators had not made the same mistake. This Service Bulletin details an inspection of all MFLIs in the wing tanks on the A320 family aircraft. The inspection involves getting access to the wing tanks and completing a special in-tank visual inspection of the MFLIs. This inspection method is considered to be clearer and less prone to error than the endoscope (boroscope) inspection detailed in SB A320-28-1138. Any MFLIs with the top-stop retained by the S-shaped lock-wire must be replaced with the composite material type of the PN FRH05000-XX series MFLI, or in some locations replaced with the later type of the metal type of the PN 3508802-XX series, where the top-stop is retained with a trapped wire. When a top-stop is found to be missing from any type of MFLI, a tank inspection is to be carried out to locate the top-stop. Also when a top-stop is found to be missing from any type of MFLI, a check to identify any damage which may have been caused due to the missing top-stop within the fuel system, is to be carried out. NOTE: Missing top-stops may be found on a composite material type of the PN FRH05000-XX series MFLI. If a top-stop is found missing from a composite MFLI, refer to EATON AEROSPACE Service Bulletin No. FRH050002-28-2. Accomplishment of this Service Bulletin will make sure that no early metal type of the Part Number (PN) 3508802-XX series, where the top-stop is retained with S-shaped lock-wire, is installed in the wing tanks. GENERAL EVALUATION EVALUATION TABLE COMPLIANCE RECOMMENDED (1) CANCELS INSPECTION SB NO POTENTIAL AD YES A/C OPERATION AFFECTED NO RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO COST SAVING NO ETOPS AFFECTED NO STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED NO DE-FUEL/VENT YES

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 2 7

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# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY NOTE (1): Service Bulletin recommended to be accomplished to prevent significant operational disruptions. MATERIAL PRICE INFORMATION **CONF 001 MATERIAL PRICE INFORMATION TABLE MATERIAL SET QTY PER A/C PRICE PER A/C (USD) MAIN PARTS Component COMPB01 See SB MFLI **CONF 002 MATERIAL PRICE INFORMATION TABLE MATERIAL SET QTY PER A/C PRICE PER A/C (USD) MAIN PARTS Component COMPB02 See SB MFLI EFFECTIVITY **CONF ALL This Service Bulletin is applicable to this (these) operator(s) :

01Z 15T 31V 31X 36V 52T 53Z 56W 59Z 60U 61T 78X 83V 86Z 98W AAF AAN AAR ABL ABY ACA ACI ADR AEE AFL AFR AGC AHY AIJ AJM ALK AMC AMU ANA ANZ ART AUA AVA AZA B2V BAL BAW BEL BER BGH BIE BKP BMA BRS BTV C9G CCA CCM CES CIB CQH CQN CSA CSC CSN CTN CYP D2F DAL DCS DLH DRK EAA EDW EIN ETD ETJ EZD EZY F2I FFT FHE FHY FIN FPY FRN G4I G8E GAP GFA GIA GIR GLG GSW GWI GWY HCC HDA HEJ HVN I2L IAC IBE IRA IRM ISS IWD JAV JBU JET JKK JSA JST KAC KCA KFR KGL KHO KKK KNE KPS KZR LAN LBT LBY LFO LIT LLM LLP LMJ LMU M2I MAC MAU MDL MEA MHS MLD MLR MMA MON MSR MXA NMA NVD NVR O2X OHY OZW PAL PGT PIC PTR QAF QTR R1T RAM RBA RFJ RKM RNV RYW RZO SAA SAS SBI SDM SFW SGG SHJ SHY SKU SLK SND SNX SOL STU SVR SWR SXR SYR TAE TAI TAM TAP TAR TBJ TCW TCX TGW THY TNA TOM UAL UDC UEA USA VKG VKH VLE VLG VLK VNV VOI WGT WHT WTJ WZZ XLF YAP CONCURRENT REQUIREMENTS None REFERENCES / REPERCUSSIONS TFU None OEB None AOT None SIL None
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 3 7

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# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY LINE MAINTENANCE AFFECTED No LIFE LIMIT None OTHER None NATURE OF THE WORK AIRCRAFT YES EQUIPMENT NO HARD NO SOFT NO OBRM NO MANPOWER **CONF 001 Task 281209-832-895-001: INSPECTION TOTAL MANHOURS 16.00 ELAPSED TIME (HOURS) 16.00 Task 281209-833-895-001: REPAIR (IF NECESSARY) TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: Replace the Top-Stop on Composite MFLI EATON Service Bulletin No. FRH050002-28-2 **CONF 002 Task 281209-832-895-001: INSPECTION TOTAL MANHOURS 20.50 ELAPSED TIME (HOURS) 20.50 Task 281209-833-895-001: REPAIR (IF NECESSARY) TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: Replace the Top-Stop on Composite MFLI EATON Service Bulletin No. FRH050002-28-2 APPENDICES **CONF ALL None

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 4 7

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# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY

**CONF 001

56QM (57QM)

106QM (107QM)

108QM (109QM)

110QM (111QM)

112QM (113QM) RIB1
RIB2

RIB7

RIB10

RIB13

RIB16

RIB19
RIB21 104QM (105QM)

58QM (59QM)

60QM (61QM)

62QM (63QM)

64QM (65QM)

MAGNETIC FUEL LEVEL INDICATOR KEY: LH WING SHOWN RH WING SIMILAR

N_SB_281209_7_SAAA_01_00 Figure A-USAAA - Sheet 01

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 5 7

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# @A318/A319/A320/A321 SERVICE BULLETIN SUMMARY

**CONF 002

56QM (57QM)

106QM (107QM)

108QM (109QM)

110QM (111QM) RIB1
RIB2

RIB7

RIB10

RIB13

RIB16

RIB19
RIB21 104QM

(59QM)

(61QM)

(63QM)

MAGNETIC FUEL LEVEL INDICATOR KEY: LH WING SHOWN RH WING SIMILAR (209QM) 210QM (211QM)

(201QM) 204QM (205QM) (203QM) 206QM (207QM) (105QM)

58QM

60QM

62QM

208QM

200QM

202QM

N_SB_281209_7_SAAB_01_00 Figure A-USAAB - Sheet 01

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 6 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F Fax : (33) 5 61 93 42 51 ATA SYSTEM: 28 

### TITLE: FUEL - TANK - INSPECTION OF THE MAGNETIC FUEL LEVEL INDICATOR MODIFICATION No.: None This document contains AIRBUS PROPRIETARY INFORMATION and shall at all times remain the property of AIRBUS; no intellectual property right or licence is granted by AIRBUS in connection with any information contained in it. It is delivered on the express condition that said document and the information contained in it shall be treated as confidential, shall not be used for any purpose other than that for which it is hereby delivered. It shall not be disclosed in whole or in part to third parties and shall not be duplicated in any manner (except for the purposes of performing the tasks described hereunder and provided that any recipient of such document shall comply with the conditions herein), without AIRBUS prior written consent. 1. PLANNING INFORMATION **CONF ALL A. EFFECTIVITY (1) Models 318-111 318-112 319-111 319-112 319-113 319-114 319-115 319-131 319-132 319-133 320-211 320-212 320-214 320-231 320-232 320-233 321-111 321-112 321-131 321-211 321-212 321-231 321-232 (2) Effectivity by MSN 0029 0039 0042-0059 0061-0078 0080-0090 0093-0097 0099 0102-0104 0109-0128 0132 0135-0155 0157-0162 0164-0176 0178-0179 0181-0183 0185-0192 0194-0224 0226-0237 0239-0270 0272-0279 0281-0303 0305-0312 0314 0316-0337 0339-0362 0364-0373 0375-0396 0398-0432 0434-0436 0438-0466 0468-0480 0482-0535 0537-0546 0548-0601 0603-0631 0633-0707 0709-0752 0754-0788 0790-0955 0957-1043 1045-1185 1187-1217 1219-1277 1279-1373 1375-1812 1814-1821 1823-1829 1831-1918 1920-1929 1931-1984 1986-1991 1993-2024 2026-2110 2112-2381 (3) Effectivity by Operator The Operator/MSN relationship is provided for information only and is correct at the time of issue in accordance with the information available to AIRBUS. Any future changes resulting from transfer of an aircraft from one operator to another will not be reflected in this list unless the Service Bulletin is revised for another reason. DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 1 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN 01Z 1589 15T 0764 1494 31V 0164 31X 2192 36V 0136 52T 1599 53Z 1468 56W 0247 0257 0327 0336 59Z 1556 60U 0480 61T 0407 78X 0739 83V 0226 86Z 0169 0419 1706 1750 98W 0039 0042 0103 0120 AAF 0244 0639 0808 0823 1006 1451 1846 AAN 0299 0430 0527 AAR 0802 1174 1227 1356 1511 1636 1670 1734 2041 2045 2110 2226 2247 2290 ABL 1970 ABY 2278 2349 ACA 0059 0068 0073 0084 0122 0126 0127 0141 0149 0150 0154 0159 0174 0175 0183 0210 0231 0232 0233 0242 0248 0253 0254 0255 0265 0277 0284 0290 0309 0324 0330 0341 0378 0403 0404 0546 0572 0634 0656 0670 0672 0682 0688 0691 0693 0695 0697 0711 0719 0721 0728 0732 0736 0740 0742 0752 0757 0769 0773 0779 0785 0800 0813 0817 0829 0831 0840 0845 1562 1577 1602 1611 1623 1630 1632 1638 1673 1719 1726 1742 1748 1772 1783 1805 1811 1853 1864 1874 1940 2018 2145 ACI 2152 ADR 0043 0191 0444 AEE 1727 1880 AFL 2052 2069 2072 2091 2093 2106 2116 2133 2144 2151 2163 2179 2222 2233 2243 2330 2337 2342 AFR 0044 0061 0062 0063 0102 0115 0144 0145 0155 0186 0187 0214 0227 0228 0236 0237 0239 0270 0278 0285 0286 0287 0337 0352 0377 0491 0498 0509 0521 0529 0544 0598 0600 0608 0618 0625 0637 0777 0796 0938 0985 0998 1000 1020 1025 1036 1133 1151 1169 1176 1190 1201 1216 1267 1271 1299 1344 1404 1415 1444 1449 1471 1476 1502 1505 1524 1616 1622 1640 1645 1658 1677 1691 1699 1733 1859 1873 1879 1885 1894 1900 1924 1938 1949 2035 2059 2071 2081 2100 2109 2140 2213 2228 2317 2344 2350 AGC 0190 0279 0395 AHY 0331 AIJ 0707 1132 1162 1179 1244 1259 1308 1322 1747 1780 2048 2189 2227 AJM 0624 0626 0628
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 2 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN ALK 2345 AMC 2113 2122 2142 2186 2291 2332 AMU 0557 0597 0620 0631 0805 0908 0928 1758 1790 1850 1893 1912 1926 1962 ANA 0139 0151 0167 0170 0196 0212 0219 0245 0300 0328 0365 0383 0413 0482 0501 0507 0531 0534 0549 0554 0658 0669 0685 2061 ANZ 2085 2090 2112 2130 2148 2153 2173 2257 2297 ART 0142 0310 0311 0333 0359 0384 0426 0724 AUA 0552 0570 0581 0768 0776 0797 0920 0935 1137 1150 1189 1385 1387 1458 1478 2131 2174 2262 AVA 1612 1618 1634 2066 2328 2333 2358 2367 2377 AZA 0434 0477 0488 0494 0495 0513 0514 0515 0516 0524 0526 0532 0576 0583 0586 0593 0599 0765 0819 0848 0940 0951 0959 0999 1138 1168 1217 1220 1448 1457 1473 1480 1489 1722 1740 1745 1770 1779 2033 2057 2074 2083 2086 2101 2127 B2V 0185 BAL 2335 BAW 0109 1082 1115 1118 1142 1193 1197 1222 1225 1232 1236 1239 1258 1261 1279 1295 1329 1338 1380 1384 1423 1440 1445 1466 1510 1513 1529 1537 1558 1574 1590 1594 1604 1606 1661 1665 1687 1689 1696 1708 1754 1760 1782 1814 1829 1871 1883 1899 1907 1910 1958 2038 2040 2305 2320 2323 2324 2351 2363 BEL 0644 1086 1102 1160 1336 1388 1441 1493 2196 2230 BER 1504 1553 1607 1629 1797 1838 1931 1966 1988 1994 2005 2009 BGH 0221 0294 0349 1087 BIE 0293 0517 0519 0535 0642 0827 0891 BKP 2254 2310 BMA 1014 1177 1418 1424 1690 1711 1922 1987 2098 2188 2190 2194 BRS 2263 BTV 0168 0441 0449 0460 0461 0710 1676 C9G 0246 CCA 0876 0921 1296 1654 1679 1753 2000 2007 2015 2172 2202 2205 2237 2269 2285 2293 2298 CCM 1068 1145 CES 0665 0754 0828 0838 0854 0883 0897 0909 0914 0925 0939 0967 0984 0986 1005 1028 1030 1041 1070 1072 1093 1108 1285 1303 1312 1316 1330 1345 1357 1361 1377 1386 1532 1541 1542 1551 1601 1603 1639 1778 1786 1906 1911 1964 1981 2022 2034 2036 2049 2056 2068 2155 2171 2182 2199 2212 2219 2221 2235 2239 2244 2274 2309 2315 CIB 0774 0809 0884 0894 0905 0957 0971 1381 1402 1416 1437 1968 CQH 0978 1286 1372 1686 1769 1852 1920 CQN 0696 0698 0704 0705 CSA 0674 0684 1439 1450 CSC 0540 0550 0551 0556 0573 0582 0591 0872 0874 0878 0902 0912 0915 0919 1007 1013 1060 1293 1500 2313 2348

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 3 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN CSN 0709 0712 0718 0720 0722 0849 0859 0881 0895 0900 0950 0966 1035 1039 1057 1596 1614 1776 1788 1971 1974 1986 1995 2004 2008 2067 2080 2200 2203 2232 2273 2354 2361 2371 CTN 0258 0767 0833 1009 1029 1237 1252 CYP 0256 1729 1768 2108 2275 2334 2343 2359 D2F 0211 0243 0251 0326 0344 0411 0478 1008 1963 DAL 0118 0121 0125 0152 0153 0160 0171 0192 0197 0206 0208 0213 0262 0263 0272 0273 0281 0282 0297 0298 0306 0307 0318 0319 0329 0339 0340 0355 0358 0360 0367 0372 0380 0381 0387 0388 0399 0408 0410 0417 0418 0766 0778 0786 0801 0807 0818 0830 0832 0846 0903 0907 0911 0923 0962 0964 0981 0988 0996 1011 1037 1058 1062 1191 1230 1249 1324 1325 1346 1392 1414 1434 1453 1456 1483 1498 1501 1520 1535 1543 1549 1567 1570 1582 1633 1641 1646 1659 1662 1683 1685 1693 1709 1714 1738 1746 1752 1766 1774 1789 1796 1800 1810 1812 1815 1820 1824 1828 1833 1839 1875 1897 1923 1959 1976 1982 1990 2002 2013 2026 2039 2047 2082 2087 2092 2095 DCS 1053 DLH 0069 0070 0071 0072 0078 0083 0086 0093 0094 0104 0110 0111 0116 0117 0135 0137 0147 0161 0162 0172 0200 0201 0202 0209 0216 0217 0218 0267 0268 0269 0346 0382 0401 0412 0458 0468 0473 0474 0484 0493 0502 0505 0518 0560 0563 0564 0567 0595 0609 0610 0616 0623 0627 0652 0679 0689 0692 0694 0699 0700 0717 0723 0729 0738 0744 0853 0860 0875 0887 0901 1080 1161 1188 1214 1260 1273 1337 1365 1367 DRK 2306 2346 EAA 0325 0386 0445 EDW 0942 0947 1026 EIN 0926 1023 1094 1242 1394 1443 1467 2191 2206 2217 2250 2256 2272 2294 2364 2374 ETD 0350 1944 1945 1947 1955 2167 ETJ 0428 EZD 0667 0743 1074 2137 2141 2147 EZY 2037 2043 2050 2053 2062 2119 2120 2129 2170 2176 2181 2184 2245 2251 2265 2271 2283 2289 2300 2319 2353 2360 2370 2378 2380 F2I 0128 0188 0283 0394 0615 FFT 1515 1579 1583 1660 1684 1759 1781 1803 1806 1841 1939 1943 1980 1991 1997 2010 2012 2017 2019 2030 2051 2103 2198 2209 2218 2236 2240 2241 2253 2258 2260 2276 2287 2318 2325 FHE 0888 0936 1171 1210 FHY 0132 0288 0580 0771 0855 FIN 0941 0961 1073 1107 1184 1185 1241 1309 1352 1364 1405 1470 1544 1588 1678 1712 1735 1791 1808 1913 1916 1978 1989 2065 2124 2146 2154 2208 2266 FPY 0112 0342 0438 FRN 0409 0466 0497 G4I 1157 1795

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 4 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN G8E 0305 1464 GAP 2162 2183 GFA 1884 1901 GIA 0839 0892 GIR 0630 1973 GLG 1866 1872 1882 1925 2078 2126 GSW 0376 GWI 1077 1084 1089 1136 1147 1155 1170 1209 1277 GWY 1564 1615 1725 1860 1867 HCC 2180 HDA 0633 0756 0784 0812 0930 0993 1024 1253 1695 1721 1984 2021 2229 2238 HEJ 0087 0088 HVN 0590 0594 0601 0605 0607 0611 0617 0619 0648 0650 2255 2261 2267 2303 I2L 0443 0775 1454 IAC 0045 0046 0047 0048 0049 0050 0051 0056 0057 0058 0074 0075 0080 0089 0090 0095 0096 0097 0308 0314 0396 0398 0416 0423 0431 0432 0451 0469 0486 0490 0492 0499 1668 1718 IBE 0173 0176 0207 0223 0266 0274 0323 1021 1027 1047 1059 1067 1099 1101 1119 1154 1180 1208 1229 1247 1255 1262 1288 1292 1318 1347 1362 1516 1530 1540 1554 1572 1655 1674 1681 1694 1716 1736 1793 1809 1836 2115 2220 2225 2242 2248 2264 2270 2311 2347 2357 2365 2381 IRA 0303 0312 0345 0575 0857 2054 IRM 0530 1202 ISS 0588 0737 0749 1048 1125 1198 1283 1305 1715 1723 1823 1896 1937 1983 2001 2102 IWD 2011 JAV 0029 JBU 1123 1156 1173 1235 1240 1257 1270 1280 1302 1327 1398 1446 1452 1506 1528 1546 1557 1610 1650 1705 1739 1784 1785 1849 1861 1898 1904 1915 1917 1927 1948 2006 2020 2031 2042 2063 2075 2099 2125 2132 2136 2149 2150 2159 2160 2177 2201 2215 2231 2246 2259 2280 2284 2286 2307 2314 2336 2352 2368 JET 0204 0215 0371 0421 0542 0647 0660 0816 0877 JKK 1183 1276 1333 1349 1366 1383 1407 1497 1631 1682 1749 1843 1862 1914 1933 1946 1979 1998 2027 2168 2210 2223 JSA 2156 2164 2316 2356 JST 1195 1408 2169 2185 2197 2292 2299 2322 2329 2338 KAC 0181 0182 0195 2046 KCA 0354 KFR 2366 2376 KGL 0668 2029 2077 KHO 0361 0362 0405 KKK 0604 0614 0675 0761 0968 0974 1124 1438 1503 1950 KNE 1886 2123 2165
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 5 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN KPS 0234 KZR 1042 1204 2016 2128 LAN 1304 1332 1351 1355 1491 1512 1526 1548 1568 1626 1854 1858 1877 1903 2089 2096 2295 2304 2321 LBT 0222 0301 0348 0400 0793 0937 0970 0995 1121 1175 1597 1744 LBY 0558 0561 1098 LFO 0659 LIT 0636 0641 0646 0651 0654 0794 1016 1172 LLM 1054 LLP 1411 LMJ 1868 LMU 0666 0932 0943 M2I 1017 MAC 2166 MAU 1592 1936 MDL 0391 MEA 1878 1953 1956 1967 1977 2055 MHS 1300 1353 MLD 0249 0622 0741 MLR 0977 MMA 0113 0114 0295 0316 MON 0379 0389 0392 0864 0983 1015 1045 1081 1153 1207 1370 1428 1433 1707 1763 1794 1941 2105 2234 MSR 0165 0166 0178 0194 0198 0322 0351 0366 0680 0687 0715 0725 2070 2073 2079 2088 2094 MXA 0252 0259 0260 0261 0275 0276 0291 0292 0296 0320 0321 0332 0347 0353 0357 0368 0369 0373 0447 1429 NMA 1697 1732 NVD 0375 NVR 2211 2216 O2X 0476 OHY 0364 0385 0455 0471 0496 0640 0663 0676 0787 0792 0835 0916 0954 0963 1004 1421 1482 1509 OZW 0429 PAL 0706 0745 PGT 1730 2118 PIC 0990 PTR 0459 0537 QAF 0927 1335 QTR 1487 1566 1648 1656 1773 1895 1928 1957 2097 2107 2121 2138 2161 2288 2341 R1T 1908 RAM 2064 2076 RBA 2023 2032 2135 2139 RFJ 0814 RKM 2158
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 6 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN RNV 0229 0772 0913 2277 2362 RYW 0569 RZO 0795 SAA 2268 2281 2308 2326 2355 2375 2379 SAS 1587 1619 1642 1675 1798 1807 1817 1848 SBI 1071 1078 1090 1091 1126 1129 1131 1149 1164 1167 1819 1870 2028 2279 2369 2373 SDM 0427 0525 0649 1130 1488 1560 1578 1657 1743 1761 1767 1851 1863 1876 1890 SFW 0671 0994 SGG 0799 0879 1390 SHJ 0910 SHY 0138 0148 0811 1194 SKU 0179 0406 1400 1523 SLK 0899 0969 1228 1422 1561 1698 2058 2252 SND 1999 SNX 0289 SOL 0302 STU 0420 0436 0446 SVR 0140 0157 0203 0220 0735 0815 0841 0991 1012 1063 1152 1199 1484 1720 1751 1777 1905 2117 2175 2187 2327 SWR 0520 0522 0541 0545 0553 0559 0562 0574 0577 0578 0585 0596 0603 0612 0621 0635 0643 0664 0673 0681 0701 0703 0713 0727 0734 0782 0987 1018 1144 1762 1951 2024 2134 SXR 2214 2224 2249 SYR 0886 0918 1032 1076 1085 1117 TAE 0657 0934 2084 TAI 1066 1113 1334 1598 1624 1625 1934 1952 2282 2301 2339 TAM 0250 0334 0335 0440 0758 0976 1010 1092 1096 1103 1139 1143 1158 1215 1246 1251 1339 1368 1376 1459 1486 1518 1575 1580 1591 1593 1595 1608 1613 1628 1652 1663 1672 1692 1703 1717 1757 1771 1775 1801 1802 1804 1818 1825 1826 1827 1831 1832 1835 1837 1855 1857 1888 1891 2014 2044 2372 TAP 0629 0750 0755 0763 0790 0821 0837 0870 0906 0917 0933 0945 0960 0979 0982 1034 1100 1106 1120 1127 1165 1181 1206 1231 1307 1399 1667 1713 1756 1765 1799 1816 2178 TAR 0119 0123 0124 0205 0370 0390 0402 0511 0869 0880 0958 0975 1187 1479 1700 TBJ 1485 TCW 0425 0453 0653 1306 1787 1929 TCX 0424 0677 0716 1238 1250 1942 1961 1965 2003 2060 2114 TGW 2195 2331 2340 THY 0806 0810 1002 1219 1233 1856 1909 1996 TNA 0538 0555 0606 0731 0746 0791 0822 TOM 0781 0852 1320 1571 1605 1637

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 7 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

OPERATOR MSN UAL 0435 0439 0442 0450 0452 0454 0456 0457 0462 0463 0464 0465 0470 0472 0475 0479 0483 0485 0487 0489 0500 0503 0504 0506 0508 0510 0512 0523 0539 0568 0571 0587 0589 0592 0613 0638 0655 0678 0683 0686 0690 0702 0748 0751 0759 0780 0783 0788 0798 0804 0820 0824 0825 0826 0834 0836 0842 0843 0847 0850 0851 0858 0862 0865 0867 0871 0873 0882 0893 0898 0944 0948 0952 0955 0965 0980 0989 1001 1022 1031 1104 1105 1128 1146 1163 1192 1211 1243 1248 1266 1272 1282 1290 1291 1321 1341 1343 1359 1363 1401 1409 1420 1426 1427 1432 1435 1460 1469 1474 1475 1477 1495 1507 1508 1514 1522 1533 1538 1545 1555 1559 1569 1573 1581 1584 1585 1586 1600 1609 1617 1620 1627 1647 1649 1653 1664 1669 1671 1680 1688 1702 1728 1731 1737 1741 1755 1821 1840 1842 1845 1847 1865 UDC 0085 0230 0235 0579 0645 0662 0733 0747 0760 1869 UEA 0946 0949 1263 USA 0052 0053 0054 0055 0064 0065 0066 0067 0076 0077 0081 0082 0099 0317 0448 0565 0584 0762 0770 0803 0844 0856 0861 0863 0866 0868 0885 0889 0890 0896 0904 0922 0924 0929 0931 0953 0972 0997 1003 1019 1033 1038 1040 1043 1046 1049 1050 1051 1052 1055 1056 1061 1064 1065 1069 1075 1079 1083 1088 1095 1097 1109 1110 1111 1112 1114 1116 1122 1134 1135 1141 1148 1166 1178 1182 1196 1203 1205 1223 1224 1234 1245 1254 1264 1265 1268 1269 1274 1275 1281 1284 1287 1289 1294 1297 1298 1301 1310 1311 1313 1314 1315 1317 1319 1323 1326 1328 1331 1340 1342 1348 1350 1354 1358 1360 1369 1371 1373 1375 1378 1382 1389 1391 1393 1395 1397 1403 1406 1410 1412 1417 1419 1425 1431 1436 1442 1447 1455 1462 1463 1465 1472 1481 1490 1492 1496 1499 1517 1519 1521 1525 1527 1531 1534 1536 1539 1547 1552 1563 1565 1576 1621 1643 1644 1651 1666 1701 1704 1710 1724 1764 1792 1844 1935 2193 2302 2312 VKG 1881 1887 1889 1921 1932 1954 1960 1972 1975 VKH 0393 0414 0415 VLE 1226 VLG 0143 0146 0158 0199 0224 0240 0241 0264 0356 0992 1221 1396 1413 1430 1461 1550 2104 2143 2207 VLK 0422 0528 0714 0730 1200 1213 1379 VNV 0543 0661 1918 1969 1993 2157 VOI 1140 1159 2204 2296 WGT 1212 WHT 0726 1256 WTJ 0548 WZZ 1635 1834 1892 1902 XLF 0189 0343 YAP 0533 0566 0973

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 8 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (4) Configuration by MSN MSN CONFIGURATION 0029 0039 0042 0043 0044 0045 0046 0047 0048 0049 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 0061 0062 0063 0064 0065 0066 0067 0068 0069 0070 0071 0072 0073 0074 0075 0076 0077 0078 0080 0081 0082 0083 0084 0085 0086 0087 0088 0089 0090 0093 0094 0095 0096 0097 0099 0102 0103 0104 0109 0110 0111 0112 0113 0114 0115 0116 0117 0118 0119 0120 0121 0122 0123 0124 0125 0126 0127 0128 0132 0135 0136 0137 0138 0139 0140 0141 0142 0143 0144 0145 0146 0147 0148 0149 0150 0151 0152 0153 0154 0155 0157 0158 0159 0160 0161 0162 0164 0165 0166 0167 0168 0169 0170 0171 0172 0173 0174 0175 0176 0178 0179 0181 0182 0183 0185 0186 0187 0188 0189 0190 0191 0192 0194 0195 0196 0197 0198 0199 0200 0201 0202 0203 0204 0205 0206 0207 0208 0209 0210 0211 0212 0213 0214 0215 0216 0217 0218 0219 0220 0221 0222 0223 0224 0226 0227 0228 0229 0230 0231 0232 0233 0234 0235 0236 0237 0239 0240 0241 0242 0243 0244 0245 0246 0247 0248 0249 0250 0251 0252 0253 0254 0255 0256 0257 0258 0259 0260 0261 0262 0263 0264 0265 0266 0267 0268 0269 0270 0272 0273 0274 0275 0276 0277 0278 0279 0281 0282 0283 0284 0285 0286 0287 0288 0289 0290 0291 0292 0293 0294 0295 0296 0297 0298 0299 0300 0301 0302 0303 0305 0306 0307 0308 0309 0310 0311 0312 0314 0316 0317 0318 0319 0320 0321 0322 0323 0324 0325 0326 0327 0328 0329 0330 0331 0332 0333 0334 0335 0336 0337 0339 0340 0341 0342 0343 0344 0345 0346 0347 0348 0349 0350 0351 0352 0353 0354 0355 0356 0357 0358 0359 0360 0361 0362 0365 0366 0367 0368 0369 0370 0371 0372 0373 0375 0376 0377 0378 0379 0380 0381 0382 0383 0384 0386 0387 0388 0389 0390 0391 0392 0393 0394 0395 0396 0398 0399 0400 0401 0402 0403 0404 0405 0406 0407 0408 0409 0410 0411 0413 0414 0415 0416 0417 0418 0419 0420 0421 0422 0423 0424 0425 0426 0427 0428 0429 0430 0431 0432 0435 0436 0438 0439 0440 0441 0442 0443 0444 0445 0446 0447 0448 0449 0450 0451 0452 0453 0454 0455 0456 0457 0459 0460 0461 0462 0463 0464 0465 0466 0469 0470 0471 0472 0475 0476 0478 0479 0480 0482 0483 0485 0486 0487 0489 0490 0491 0492 0496 0497 0499 0500 0501 0503 0504 0506 0507 0508 0510 0511 0512 0523 0525 0527 0528 0530 0531 0533 0534 0537 0539 0540 0542 0543 0545 0546 0548 0549 0551 0553 0554 0556 0558 0559 0561 0562 0565 0566 0568 0569 0571 0572 0573 0574 0575 0577 0578 0579 0580 0582 0584 0585 0587 0588 0589 0590 0592 0594 0596 0598 0600 0601 0603 0605 0607 0608 0609 0610 0611 0612 0613 0615 0616 0617 0618 0619 0621 0622 0623 0624 0625 0626 0627 0628 0629 0630 0634 0635 0636 0637 0638 0639 0640 0641 0643 0644 0645 0646 0647 0648 0649 0650 0651 0653 0654 0655 0656 0657 0658 0659 0660 0661 0662 0665 0667 0669 0670 0671 0672 0673 0676 0678 0679 0681 0682 0683 0685 0686 0688 0689 0690 0691 001

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 9 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

MSN CONFIGURATION 0693 0694 0695 0696 0697 0698 0700 0701 0702 0703 0704 0705 0706 0707 0709 0710 0711 0712 0713 0714 0716 0717 0718 0719 0720 0721 0722 0723 0724 0726 0727 0728 0729 0730 0732 0733 0734 0735 0736 0737 0738 0739 0740 0741 0742 0743 0744 0745 0747 0748 0749 0750 0751 0752 0754 0755 0756 0757 0758 0759 0760 0762 0763 0764 0766 0767 0768 0769 0770 0772 0773 0774 0776 0778 0779 0780 0782 0783 0784 0785 0786 0788 0790 0791 0793 0794 0795 0797 0798 0799 0800 0801 0803 0804 0805 0807 0809 0812 0813 0814 0816 0817 0818 0820 0821 0822 0824 0825 0826 0828 0829 0830 0831 0832 0833 0834 0836 0837 0838 0839 0840 0842 0843 0844 0845 0846 0847 0849 0850 0851 0853 0854 0856 0857 0858 0859 0860 0861 0862 0863 0865 0866 0867 0868 0869 0870 0871 0872 0873 0874 0875 0876 0877 0879 0880 0881 0882 0883 0884 0885 0886 0888 0889 0890 0892 0893 0894 0895 0896 0897 0898 0899 0900 0902 0903 0904 0905 0906 0907 0909 0910 0911 0912 0913 0914 0916 0917 0918 0919 0921 0922 0923 0924 0925 0927 0928 0929 0930 0931 0932 0933 0934 0936 0937 0938 0939 0942 0943 0944 0945 0946 0947 0948 0949 0950 0951 0952 0953 0955 0957 0958 0960 0962 0964 0965 0966 0967 0969 0971 0972 0973 0975 0976 0977 0978 0979 0980 0981 0982 0984 0985 0986 0988 0989 0990 0992 0994 0996 0997 0998 0999 1000 1001 1002 1003 1005 1007 1009 1010 1011 1013 1014 1016 1018 1019 1020 1022 1025 1026 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1043 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1145 1146 1147 1148 1149 1150 1151 1152 1154 1155 1156 1157 1158 1159 1160 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1187 1189 1190 1191 1192 1193 1194 1196 1197 1198 1200 1201 1203 1205 1206 1208 1209 1210 1211 1212 1213 1215 1216 1217 1221 1222 1223 1224 1225 1226 1228 1229 1230 1231 1232 1234 1235 1236 1237 1239 1240 1242 1243 1244 1245 1246 1247 1248 1249 1251 1252 1253 1254 1255 1256 1257 1258 1259 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1274 1275 1277 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1294 1295 1296 1297 1298 1300 1301 1302 1303 1304 1305 1306 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 001

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 10 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

MSN CONFIGURATION 1357 1358 1359 1360 1361 1362 1363 1364 1365 1367 1368 1369 1370 1371 1372 1373 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1400 1401 1402 1404 1405 1406 1407 1409 1410 1411 1413 1414 1415 1416 1418 1419 1420 1422 1423 1424 1426 1427 1429 1430 1432 1434 1435 1437 1439 1440 1441 1443 1444 1445 1446 1448 1449 1450 1452 1453 1454 1456 1457 1459 1460 1461 1463 1464 1466 1467 1468 1469 1470 1471 1473 1474 1475 1477 1478 1479 1480 1482 1483 1484 1485 1486 1488 1489 1490 1491 1493 1494 1495 1497 1498 1500 1501 1502 1504 1505 1506 1507 1508 1509 1510 1512 1513 1514 1515 1516 1518 1520 1522 1523 1524 1526 1527 1528 1529 1530 1532 1533 1534 1535 1537 1538 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1588 1589 1590 1591 1592 1593 1594 1595 1597 1598 1599 1600 1601 1603 1604 1605 1606 1608 1609 1610 1612 1613 1615 1616 1617 1618 1620 1621 1622 1624 1625 1626 1627 1628 1630 1631 1633 1634 1635 1637 1639 1640 1641 1643 1644 1645 1646 1647 1648 1649 1650 1652 1653 1654 1655 1656 1657 1659 1660 1661 1662 1663 1664 1665 1667 1668 1669 1671 1672 1673 1674 1676 1677 1678 1679 1680 1682 1683 1684 1685 1686 1687 1688 1689 1692 1693 1694 1696 1697 1698 1699 1700 1702 1703 1705 1706 1708 1709 1710 1712 1714 1715 1717 1718 1719 1721 1722 1723 1725 1727 1728 1729 1730 1731 1732 1733 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1764 1765 1766 1767 1768 1769 1770 1771 1773 1774 1775 1777 1778 1779 1780 1781 1782 1784 1785 1786 1787 1789 1790 1791 1792 1793 1795 1796 1797 1799 1800 1801 1802 1803 1804 1805 1806 1808 1809 1810 1812 1814 1815 1816 1818 1819 1820 1821 1823 1824 1825 1826 1827 1828 1829 1831 1832 1833 1834 1835 1837 1838 1839 1840 1841 1842 1844 1845 1846 1847 1849 1851 1852 1853 1854 1855 1856 1857 1858 1860 1861 1862 1863 1864 1865 1866 1867 1868 1870 1871 1872 1873 1874 1875 1876 1877 1879 1880 1882 1883 1884 1885 1886 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1920 1922 1923 1924 1925 1927 1929 1931 1933 1934 1935 1936 1937 1938 1939 1940 1942 1943 1944 1945 1947 1948 1949 1951 1952 1954 1955 1957 1958 1959 1961 1962 1963 1964 1965 1968 1969 1971 1973 1975 1976 1979 1980 1981 1982 1983 1986 1987 1989 1990 1991 1993 1996 1997 1998 1999 2000 2001 2002 2003 2004 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2022 2023 2024 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 001

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 11 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

MSN CONFIGURATION 2042 2043 2044 2046 2047 2048 2049 2050 2051 2052 2053 2054 2056 2057 2058 2059 2061 2062 2063 2065 2066 2068 2069 2070 2071 2072 2073 2074 2075 2077 2078 2079 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2106 2108 2109 2112 2113 2114 2116 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2209 2210 2212 2213 2214 2215 2217 2218 2219 2221 2222 2223 2224 2225 2227 2228 2229 2230 2231 2232 2233 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2248 2249 2250 2251 2252 2253 2254 2256 2257 2258 2259 2260 2262 2263 2264 2265 2266 2268 2269 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2304 2306 2307 2308 2310 2311 2312 2313 2314 2316 2317 2318 2319 2321 2322 2325 2326 2327 2328 2329 2331 2332 2333 2334 2335 2336 2338 2339 2340 2341 2343 2344 2345 2346 2347 2348 2349 2350 2352 2353 2354 2355 2356 2358 2359 2360 2361 2362 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 001

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 12 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

MSN CONFIGURATION 0364 0385 0412 0434 0458 0468 0473 0474 0477 0484 0488 0493 0494 0495 0498 0502 0505 0509 0513 0514 0515 0516 0517 0518 0519 0520 0521 0522 0524 0526 0529 0532 0535 0538 0541 0544 0550 0552 0555 0557 0560 0563 0564 0567 0570 0576 0581 0583 0586 0591 0593 0595 0597 0599 0604 0606 0614 0620 0631 0633 0642 0652 0663 0664 0666 0668 0674 0675 0677 0680 0684 0687 0692 0699 0715 0725 0731 0746 0761 0765 0771 0775 0777 0781 0787 0792 0796 0802 0806 0808 0810 0811 0815 0819 0823 0827 0835 0841 0848 0852 0855 0864 0878 0887 0891 0901 0908 0915 0920 0926 0935 0940 0941 0954 0959 0961 0963 0968 0970 0974 0983 0987 0991 0993 0995 1004 1006 1008 1012 1015 1017 1021 1023 1024 1027 1042 1045 1060 1080 1094 1133 1144 1153 1161 1174 1185 1188 1195 1199 1202 1204 1207 1214 1219 1220 1227 1233 1238 1241 1250 1260 1273 1276 1293 1299 1307 1333 1356 1366 1399 1403 1408 1412 1417 1421 1425 1428 1431 1433 1436 1438 1442 1447 1451 1455 1458 1462 1465 1472 1476 1481 1487 1492 1496 1499 1503 1511 1517 1519 1521 1525 1531 1536 1539 1554 1572 1587 1596 1602 1607 1611 1614 1619 1623 1629 1632 1636 1638 1642 1651 1658 1666 1670 1675 1681 1690 1691 1695 1701 1704 1707 1711 1713 1716 1720 1724 1726 1734 1748 1763 1772 1776 1783 1788 1794 1798 1807 1811 1817 1836 1843 1848 1850 1859 1869 1878 1881 1887 1905 1921 1926 1928 1932 1941 1946 1950 1953 1956 1960 1966 1967 1970 1972 1974 1977 1978 1984 1988 1994 1995 2005 2021 2041 2045 2055 2060 2064 2067 2076 2080 2105 2107 2110 2115 2117 2190 2208 2211 2216 2220 2226 2234 2247 2255 2261 2267 2270 2290 2303 2305 2309 2315 2320 2323 2324 2330 2337 2342 2351 2357 2363 2381 002

(5) Configuration definition **CONF 001 Applicable to all A318, A319 and A320 aircraft given in the effectivity of this Service Bulletin. **CONF 002 Applicable to all A321 aircraft given in the effectivity of this Service Bulletin. (6) Material Effectivity **CONF 001 MATERIAL QTY PER A/C SEE NOTES Component COMPB01 As required **CONF 002 MATERIAL QTY PER A/C SEE NOTES Component COMPB02 As required
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 13 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF ALL B. CONCURRENT REQUIREMENTS None C. REASON (1) History Service Bulletin A320-28-1138 (Mod. Nos 27496J1886 /38723J2944) was issued in 2005after the reporting of several in-service occurrences of wear and detachment of the topstops from the Magnetic Fuel Level Indicators (MFLI’s). These were found during fuel tank maintenance and on MFLI’s returned to the Vendor, FR-HiTemp (now EATON AEROSPACE). Investigation has shown that the affected MFLI’s were all of the earlymetal type (pre-mod 27496J1886) where the top-stop is retained with S-shaped lockwire. Wear to top-stop retaining S-shaped lock-wire was found to be caused by repetitive impact with the float, resulting in the complete detachment of the top-stop. This raised concerns that a detached top-stop could come into contact or close proximity with a probe, compromising the air gap between probe and the structure and creating a potential ignition risk in the event of a lightning strike. There are three different types of MFLI’s which could be installed due to interchangeability (ICY) condition and each type has a different method of retaining the top-stop, these are: - an early metal type of the series Part Number (PN) 3508802-XX series, where the top-stop is retained with S-shaped lock-wire- a later type of the metal type of the series PN 3508802-XX series, where the topstop is retained with a trapped wire - a composite material type of the series PN FRH05000-XX series. This was introduced by Mod. No. 27496J1886 where the top-stop is push fitted on to a moulded end retainer and the retainer is adhesive-bonded to the outer tube.The modification Service Bulletin (SB) A320-28-1138 directed that any MFLI of the Sshaped lock-wire must be replaced within 6,500 Flight Hours (FH) of the Airworthiness Directive (AD) effectivity date with a post mod. design and any detached end stops located and removed. The SB also gave instructions to do a visual check of the internal bore of the MFLI’s using an endoscope or an equivalent device to determine which type of MLFI was installed. The effectiveness of the inspection procedure (visual check) detailed in SB A320-28-1138 has been brought into question following the discovery by two operators of MFLI types which should have been removed by the SB. An investigation was carried out and considered: - Operator feedback - SB retrofit records
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 14 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
- Vendor records - Availibility of parts for airlines - Questions from operators during embodiment of SB A320-32-1138 collated since 2005 - Maintenance records of other operators from the SB. The conclusion of the investigation was that the Design Office (DO) could not prove that other operators had not made the same mistake. (2) Objective/Action This Service Bulletin details an inspection of all MFLIs in the wing tanks on the A320 family aircraft. The inspection involves getting access to the wing tanks and completing a special in-tank visual inspection of the MFLIs. This inspection method is considered to be clearer and less prone to error than the endoscope (boroscope) inspection detailed in SB A320-28-1138. Any MFLIs with the top-stop retained by the S-shaped lock-wire must be replaced with the composite material type of the PN FRH05000-XX series MFLI, or in some locations replaced with the later type of the metal type of the PN 3508802-XX series, where the top-stop is retained with a trapped wire. When a top-stop is found to be missing from any type of MFLI, a tank inspection is to be carried out to locate the top-stop. Also when a top-stop is found to be missing from any type of MFLI, a check to identify any damage which may have been caused due to the missing top-stop within the fuel system, is to be carried out. NOTE: Missing top-stops may be found on a composite material type of the PN FRH05000-XX series MFLI. If a top-stop is found missing from a composite MFLI, refer to EATON AEROSPACE Service Bulletin No. FRH050002-28-2. (3) Advantages Accomplishment of this Service Bulletin will make sure that no early metal type of the Part Number (PN) 3508802-XX series, where the top-stop is retained with S-shaped lock-wire, is installed in the wing tanks. (4) Operational/Maintenance Consequences None D. DESCRIPTION To accomplish this Service Bulletin it is necessary to : **CONF 001 Task 281209-832-895-001: INSPECTION (1) Remove the Access Panels (Manhole Covers) DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 15 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (2) Inspect the Wing Tank MFLIs (3) Install the Access Panels (Manhole Covers) Task 281209-833-895-001: REPAIR (IF NECESSARY) (1) Replace the MFLI (2) Replace the Top-Stop on Composite MFLI (3) Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop **CONF 002 Task 281209-832-895-001: INSPECTION (1) Remove the Access Panels (Manhole Covers) (2) Inspect the Wing Tank MFLIs (3) Install the Access Panels (Manhole Covers) Task 281209-833-895-001: REPAIR (IF NECESSARY) (1) Replace the MFLI (2) Replace the Top-Stop on Composite MFLI (3) Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop **CONF ALL E. COMPLIANCE (1) Classification RECOMMENDED: Service Bulletin recommended to be accomplished to prevent significant operational disruptions. (2) Accomplishment Timescale Accomplishment must be done at the next scheduled tank entry or within 49,000 Flight Hours (FH) from the 16th July 2005 (the effective date of the applicable Airworthiness Directive (AD)). This Service Bulletin has been classified Recommended. It is expected that an Airworthiness Directive (AD) published by the European Aviation Safety Agency (EASA) will be issued to change this classification to Mandatory. It is anticipated that the AD will confirm the (thresholds and/or intervals and/or date) given above but reference should be made to the AD for confirmation of the mandated accomplishment timescale.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 16 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
F. APPROVAL The technical content of this document is approved under the authority of Design Organisation Approval No. EASA.21J.031. If an aircraft listed in the effectivity has a modification or repair embodied that is not of AIRBUS origin, and which affects the content of this Service Bulletin, the operator is responsible for obtaining approval by its airworthiness authority for any adaptation necessary before incorporation of the Service Bulletin. G. MANPOWER The manpower estimates given in this Service Bulletin are based on the direct labor cost to do the work. These estimates assume that the work will be done by experienced personnel, and may need to be revised upwards to suit operator’s circumstances. The estimates do not include the time to prepare, plan or inspect the work. Manufacture and procurement of parts and tools, drying times for paints, sealants, etc., and general administration work are also not included. **CONF 001 Task 281209-832-895-001: INSPECTION Get Access 1.00 On Aircraft Remove the Access Panels (Manhole Covers) 6.00 Inspect the Wing Tank MFLIs 1.00 Install the Access Panels (Manhole Covers) 6.00 Tests 1.00 Close-Up 1.00 TOTAL MANHOURS 16.00 ELAPSED TIME (HOURS) 16.00 Task 281209-833-895-001: REPAIR (IF NECESSARY) Get Access 0.00 On Aircraft Replace the MFLI 2.00 Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop 1.00 Tests 1.00 Close-Up 0.00 TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: Replace the Top-Stop on Composite MFLI EATON Service Bulletin No. FRH050002-28-2 NOTE: The manhours shown are for the replacement of one MFLI only.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 17 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF 002 Task 281209-832-895-001: INSPECTION Get Access 1.00 On Aircraft Remove the Access Panels (Manhole Covers) 8.00 Inspect the Wing Tank MFLIs 1.50 Install the Access Panels (Manhole Covers) 8.00 Tests 1.00 Close-Up 1.00 TOTAL MANHOURS 20.50 ELAPSED TIME (HOURS) 20.50 Task 281209-833-895-001: REPAIR (IF NECESSARY) Get Access 0.00 On Aircraft Replace the MFLI 2.00 Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop 1.00 Tests 1.00 Close-Up 0.00 TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: Replace the Top-Stop on Composite MFLI EATON Service Bulletin No. FRH050002-28-2 NOTE: The manhours shown are for the replacement of one MFLI only. **CONF ALL H. WEIGHT AND BALANCE Not Changed I. ELECTRICAL LOAD DATA Not Changed

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 18 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
J. REFERENCES **CONF 001 Aircraft Maintenance Manual (AMM) 20-21-11 20-28-00 28-11-00 28-43-21 28-43-22 57-27-11 57-27-12 Elec. Std. Practices Manual (ESPM) 20-55-00 Structural Repair Manual (SRM) 51-11-00 51-11-13 51-76-12 Vendor Service Bulletin (VSB) EATON Service Bulletin No. FRH050002-28-2 **CONF 002 Aircraft Maintenance Manual (AMM) 20-21-11 20-28-00 28-11-00 28-43-21 28-43-22 57-27-11 57-27-12 Elec. Std. Practices Manual (ESPM) 20-55-00 Structural Repair Manual (SRM) 51-11-00 51-11-13 51-76-12 Vendor Service Bulletin (VSB) EATON Service Bulletin No. FRH050002-28-2 **CONF ALL K. PUBLICATION AFFECTED None L. INTERCHANGEABILITY/MIXABILITY Not Applicable M. SPARES None

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 19 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

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# @A318/A319/A320/A321 SERVICE BULLETIN
2. MATERIAL INFORMATION **CONF ALL A. MATERIAL - PRICE AND AVAILABILITY (1) Procurement Addresses Component COMPB01 Component COMPB02 EATON AEROSPACE LIMITED Customer Support Division Abbey Park Titchfield, Fareham Hampshire England PO14 4QA Tel: +44 (0)1329 853000 Fax: +44 (0)1329 853714 (2) Price and Availability No AIRBUS kit will be provided. Procurement terms for the equipment must be negotiated with the equipment supplier. B. INDUSTRY SUPPORT INFORMATION AIRBUS will not provide industry support for accomplishment of this Service Bulletin. C. LIST OF COMPONENTS No Kit D. LIST OF MATERIALS - OPERATOR SUPPLIED (1) Consumable Materials To accomplish this Service Bulletin it will be necessary to use the consumable materials listed in AMM Task 57-27-11-400-001. (2) Components Component COMPB01 ITEM NEW PART N ̊ QTY (UM) KEYWORD ITEM OLD PART N ̊ INT SEE NOTES FRH050002 1 HOUSING 3508802-24 FRH050003 1 HOUSING 3508802-25 3508802-34 DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 21 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

ITEM NEW PART N ̊ QTY (UM) KEYWORD ITEM OLD PART N ̊ INT SEE NOTES FRH050004 1 HOUSING 3508802-26 FRH050005 1 HOUSING 3508802-27 FRH050006 1 HOUSING 3508802-28 3508802-39 NOTE: Operators of CONF 001 aircraft must select the applicable replacement MFLI (HOUSING) necessary from the COMPB01. Component COMPB02 ITEM NEW PART N ̊ QTY (UM) KEYWORD ITEM OLD PART N ̊ INT SEE NOTES 57-0001 1 HOUSING 3508802-91 FRH050002 1 HOUSING 3508802-24 FRH050003 1 HOUSING 3508802-25 3508802-34 FRH050004 1 HOUSING 3508802-26 FRH050005 1 HOUSING 3508802-27 FRH050007 1 HOUSING 3508802-74 FRH050008 1 HOUSING 3508802-75 FRH050009 1 HOUSING 3508802-76 NOTE: Operators of CONF 002 aircraft must select the applicable replacement MFLI (HOUSING) necessary from the COMPB02. (3) Equipment None E. PARTS TO BE RE-IDENTIFIED BY OPERATOR None F. TOOLING (1) Tooling - Price and Availability None (2) Tools To accomplish this Service Bulletin it will be necessary to use the standard tools listed in AMM Task 57-27-11-000-001. (3) Special Tools To accomplish this Service Bulletin it will be necessary to use the special tools listed in AMM Task 57-27-11-000-001 and AMM Task 57-27-12-000-001.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 22 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
3. ACCOMPLISHMENT INSTRUCTIONS Task 281209-832-895-001 - INSPECTION WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS INCLUDED IN THE REFERENCED PROCEDURES. WARNING: THIS PROCEDURE USES A FUEL SYSTEM ITEM THAT IS IN A CATEGORY KNOWN AS A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL). CDCCL IDENTIFIES AN ITEM THAT CAN BE THE SOURCE OF A POSSIBLE FUEL TANK IGNITION. YOU MUST KEEP ALL CDCCL ITEMS IN THE APPROVED CONFIGURATION. DAMAGE, WEAR OR CHANGES TO A CDCCL ITEM CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION. CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY AND MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENANCE WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING, COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO THIS: - PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS NECESSARY ON WIRING AND COMPONENTS - REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND OTHER CONTAMINATION. THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION. IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00. Task Associated Data **CONF 001 Zone From 540 to 640 Modified FIN 56QM 57QM 58QM 59QM 60QM 61QM 62QM 63QM 64QM 65QM 540RB 640RB Access Panel 540AB 540BB 540BZ 540DB 540GB 540KB 540NB 540QB 540RB 640AB 640BB 640BZ 640DB 640GB 640KB 640NB 640QB 640RB Manpower TOTAL MANHOURS 16.00 ELAPSED TIME (HOURS) 16.00 **CONF 002 Zone From 540 to 640 DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 23 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

Modified FIN 540QB 640QB 56QM 57QM 58QM 59QM 60QM 61QM 62QM 63QM 200QM 201QM 202QM 203QM 208QM 209QM Access Panel 540AB 540BB 540BZ 540DB 540GB 540KB 540NB 540QB 540RB 640AB 640BB 640BZ 640DB 640GB 640KB 640NB 640QB 640RB Manpower TOTAL MANHOURS 20.50 ELAPSED TIME (HOURS) 20.50 **CONF ALL A. GENERAL **CONF 001 (1) Subtask 281209-839-401-001 - Documentation Manpower Resources Skills NON SPECIFIC Write in the applicable aircraft records that you have done all the work given in this Service Bulletin. (2) Subtask 281209-910-402-001 - Standard Practices Manpower Resources Skills ELECTRICAL AIRFRAME References Aircraft Maintenance Manual (AMM) Task 20-21-11-911-001 Task 20-28-00-912-002 (a) Electrical Bonding of Components With Conductive Bolts and Screws (Refer to AMM Task 20-28-00-912-002). (b) Tightening Torques for Standard Threaded Fasteners (Refer to AMM Task 20-21-11-911-001). **CONF 002 (1) Subtask 281209-839-401-001 - Documentation Manpower Resources Skills NON SPECIFIC Write in the applicable aircraft records that you have done all the work given in this Service Bulletin.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 24 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (2) Subtask 281209-910-402-001 - Standard Practices Manpower Resources Skills ELECTRICAL AIRFRAME References Aircraft Maintenance Manual (AMM) Task 20-21-11-911-001 Task 20-28-00-912-002 (a) Electrical Bonding of Components With Conductive Bolts and Screws (Refer to AMM Task 20-28-00-912-002). (b) Tightening Torques for Standard Threaded Fasteners (Refer to AMM Task 20-21-11-911-001). **CONF ALL B. PREPARATION **CONF 001 (1) Subtask 281209-941-401-001 - Job Set-up Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540RB, Panel 540KB, Panel 540NB, Panel 540QB To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640RB, Panel 640KB, Panel 640NB, Panel 640QB Manpower Resources Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-000-001 Task 57-27-11-000-002 (a) Do the Job Set-up procedure for the Removal of the Access Panels FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-000-001). (b) Do the Job Set-up procedure for the Removal of the Access Panels FIN 540RB (640RB) (Refer to AMM Task 57-27-11-000-002).

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 25 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF 002 (1) Subtask 281209-941-401-002 - Job Set-up Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540KB, Panel 540NB, Panel 540QB To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640KB, Panel 640NB, Panel 640QB Manpower Resources Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-000-001 Task 57-27-11-000-002 (a) Do the Job Set-up procedure for the Removal of the Access Panels FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-000-001). (b) Do the Job Set-up procedure for the Removal of the Access Panels FIN 540KB (640KB), FIN 540NB (640NB) and FIN 540QB (640QB) (Refer to AMM Task 57-27-11-000-002). **CONF ALL C. PROCEDURE NOTE: The procedures that follow are to be done on the LH and RH wings. **CONF 001 (1) Subtask 281209-010-402-001 - Remove the Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540RB, Panel 540KB, Panel 540NB, Panel 540QB, Panel 540BZ To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640RB, Panel 640KB, Panel 640NB, Panel 640QB, Panel 640BZ

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 26 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
Manpower Resources Manhours 6.00 Minimum number of person 1 Subtask elapsed time 6.00 Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-000-001 Task 57-27-11-000-002 (a) Remove these access panels: - FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-000-001) and these access panels: - FIN 540RB (640RB) (Refer to AMM Task 57-27-11-000-002). NOTE: It will be necessary to remove the FWD and AFT fixed fairings for the Flap Track 3 to remove access panel FIN 540GB (640GB). (b) When it is safe to enter the inner fuel tanks through access panels FIN 540AB (640AB), open the AFT fuel-surge access panel FIN 540BZ (640BZ) on Rib 2 and keep it open with the HOOK-COVER (RIB 2 SURGE DOORS) (98D57004013000). (2) Subtask 281209-832-401-001 - Inspect the Wing Tank MFLIs Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Manhours 1.00 Minimum number of person 1 Subtask elapsed time 1.00 Skills AIRFRAME References Fig. A-UBAAA Location of MFLIs Sheet 01 Fig. A-UFAAA Inspection Flow Chart Sheet 01 Fig. A-UBBAA Inspection of Typical MFLI Sheet 01
Refer to Fig. A-UFAAA Sheet 01, Fig. A-UBAAA Sheet 01 and to Fig. A-UBBAA Sheet 01

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 27 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (a) Inspect these MFLIs to see what type is installed: - Between Rib 1 and Rib 2 - FIN 56QM (57QM) - Between Rib 6 and Rib 7 - FIN 58QM (59QM) - Between Rib 9 and Rib 10 - FIN 60QM (61QM) - Between Rib 12 and Rib 13 - FIN 62QM (63QM) - Between Rib 21 and Rib 22 - FIN 64QM (65QM). NOTE: MFLI FIN 64QM (65QM) is attached to the access panel FIN 540RB (640RB).(b) If any of the MFLIs are found to be the type PN 3508802-XX series with the topstop retained by the S-shaped lock-wire, they must be replaced, refer to SUBTASK 281209-900-401 001 Replace the MFLI . (c) If any of the MFLI top-stops are found to be missing, refer to SUBTASK 281209-832-402 001 Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop . (d) If the top-stop of a composite MFLI is found to be missing, refer to SUBTASK 281209-900-402 001 Replace the Top-Stop on Composite MFLI . (3) Subtask 281209-410-401-001 - Install the Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540RB To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640RB Manpower Resources Manhours 6.00 Minimum number of person 1 Subtask elapsed time 6.00 Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-400-001 Task 57-27-11-400-002 (a) Remove the HOOK-COVER (RIB 2 SURGE DOORS) (98D57004013000) from theAFT fuel-surge access panel FIN 540BZ (640BZ) on Rib 2 and let the AFT fuelsurge access panel close.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 28 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (b) Install these access panels: - FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-400-001) and these access panels: - FIN 540RB (640RB) (Refer to AMM Task 57-27-11-400-002). NOTE: It will be necessary to install the FWD and AFT fixed fairings for the Flap Track 3 after you install access panel FIN 540GB (640GB). **CONF 002 (1) Subtask 281209-010-402-002 - Remove the Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540RB, Panel 540KB, Panel 540NB, Panel 540QB, Panel 540BZ To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640RB, Panel 640KB, Panel 640NB, Panel 640QB, Panel 640BZ Manpower Resources Manhours 8.00 Minimum number of person 1 Subtask elapsed time 8.00 Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-000-001 Task 57-27-11-000-002 (a) Remove these access panels: - FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-000-001) and these access panels: - FIN 540KB (640KB), FIN 540NB (640NB) and FIN 540QB (640QB) (Refer to AMM Task 57-27-11-000-002). NOTE: It will be necessary to remove the FWD and AFT fixed fairings for the Flap Track 3 to remove access panel FIN 540GB (640GB). NOTE: It will be necessary to remove the FWD and AFT fixed fairings for the Flap Track 4 to remove access panel FIN 540NB (640NB).

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 29 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (b) When it is safe to enter the inner fuel tanks through access panels FIN 540AB (640AB), open the AFT fuel-surge access panel FIN 540BZ (640BZ) on Rib 2 and keep it open with the HOOK-COVER (RIB 2 SURGE DOORS) (98D57004013000). (2) Subtask 281209-832-401-002 - Inspect the Wing Tank MFLIs Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Manhours 1.50 Minimum number of person 1 Subtask elapsed time 1.50 Skills AIRFRAME References Fig. A-UBBAA Inspection of Typical MFLI Sheet 01 Fig. A-UFAAA Inspection Flow Chart Sheet 01 Fig. A-UBAAB Location of MFLIs Sheet 01 Fig. A-UFAAA Sheet 01, Fig. A-UBAAB Sheet 01 and Fig. A-UBBAA Sheet 01 (a) Inspect these MFLIs to see what type is installed: - Between Rib 1 and Rib 2 - FIN 56QM (57QM) - Between Rib 6 and Rib 7 - FIN 58QM (59QM) - Between Rib 9 and Rib 10 - FIN 60QM (61QM) - Between Rib 12 and Rib 13 - FIN 62QM (63QM) - Between Rib 15 and Rib 16 - FIN 208QM (209QM) - Between Rib 18 and Rib 19 - FIN 200QM (201QM) - Between Rib 20 and Rib 21 - FIN 202QM (203QM). NOTE: MFLI FIN 202QM (203QM) is attached to the access panel FIN 540QB (640QB).(b) If any of the MFLIs are found to be the type PN 3508802-XX series with the topstop retained by the S-shaped lock-wire, they must be replaced, refer to SUBTASK 281209-900-401 002 Replace the MFLI .

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 30 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (c) If any of the MFLI top-stops are found to be missing, refer to SUBTASK 281209-832-402 001 Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop . (d) If the top-stop of a composite MFLI is found to be missing, refer to SUBTASK 281209-900-402 001 Replace the Top-Stop on Composite MFLI . (3) Subtask 281209-410-401-002 - Install the Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 Access Panel 540AB, Panel 540BB, Panel 540DB, Panel 540GB, Panel 540KB, Panel 540NB, Panel 540QB To 640 Access Panel 640AB, Panel 640BB, Panel 640DB, Panel 640GB, Panel 640KB, Panel 640NB, Panel 640QB Manpower Resources Manhours 8.00 Minimum number of person 1 Subtask elapsed time 8.00 Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-400-001 Task 57-27-11-400-002 (a) Remove the HOOK-COVER (RIB 2 SURGE DOORS) (98D57004013000) from theAFT fuel-surge access panel FIN 540BZ (640BZ) on Rib 2 and let the AFT fuelsurge access panel close. (b) Install these access panels: - FIN 540AB (640AB), FIN 540BB (640BB), FIN 540DB (640DB) and FIN 540GB (640GB) (Refer to AMM Task 57-27-11-400-001) and these access panels: - FIN 540KB (640KB), FIN 540NB (640NB) and FIN 540QB (640QB) (Refer to AMM Task 57-27-11-400-002). NOTE: It will be necessary to install the FWD and AFT fixed fairings for the Flap Track 3 after you install access panel FIN 540GB (640GB). NOTE: It will be necessary to install the FWD and AFT fixed fairings for the Flap Track 4 after you install access panel FIN 540NB (640NB).

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 31 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF ALL D. TEST **CONF 001 (1) Subtask 281209-790-402-001 - Leak Test of Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The leak test is included in the AMM references for installation of the Access Panels (Manhole Covers). (2) Subtask 281209-720-401-001 - Functional Test (BITE) of Fuel Quantity Sensors Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The functional test (BITE) of the fuel quantity sensors is included in the AMM references for installation of the Access Panels (Manhole Covers). **CONF 002 (1) Subtask 281209-790-402-001 - Leak Test of Access Panels (Manhole Covers) Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The leak test is included in the AMM references for installation of the Access Panels (Manhole Covers).

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 32 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (2) Subtask 281209-720-401-001 - Functional Test (BITE) of Fuel Quantity Sensors Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The functional test (BITE) of the fuel quantity sensors is included in the AMM references for installation of the Access Panels (Manhole Covers). **CONF ALL E. CLOSE-UP **CONF 001 (1) Subtask 281209-942-402-001 - Close-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 57-27-11-400-001 Task 57-27-11-400-002 (a) Make sure that the work areas are clean and clear of tools and other items of equipment. (b) Do the Close-up Procedure for the Installation of the Access Panels (Refer to AMM Task 57-27-11-400-001 and to AMM Task 57-27-11-400-002). **CONF 002 (1) Subtask 281209-942-402-001 - Close-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 33 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

References Aircraft Maintenance Manual (AMM) Task 57-27-11-400-001 Task 57-27-11-400-002 (a) Make sure that the work areas are clean and clear of tools and other items of equipment. (b) Do the Close-up Procedure for the Installation of the Access Panels (Refer to AMM Task 57-27-11-400-001 and to AMM Task 57-27-11-400-002).

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 34 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

Task 281209-833-895-001 - REPAIR (IF NECESSARY) **CONF ALL WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS INCLUDED IN THE REFERENCED PROCEDURES. WARNING: THIS PROCEDURE USES A FUEL SYSTEM ITEM THAT IS IN A CATEGORY KNOWN AS A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL). CDCCL IDENTIFIES AN ITEM THAT CAN BE THE SOURCE OF A POSSIBLE FUEL TANK IGNITION. YOU MUST KEEP ALL CDCCL ITEMS IN THE APPROVED CONFIGURATION. DAMAGE, WEAR OR CHANGES TO A CDCCL ITEM CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION. CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY AND MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENANCE WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING, COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO THIS: - PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS NECESSARY ON WIRING AND COMPONENTS - REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND OTHER CONTAMINATION. THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION. IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00. Task Associated Data **CONF 001 Zone From 540 to 640 Modified FIN 56QM 57QM 58QM 59QM 60QM 61QM 62QM 63QM 64QM 65QM 540RB 640RB Manpower TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: EATON Service Bulletin No. FRH050002-28-2 **CONF 002 Zone From 540 to 640
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 35 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

Modified FIN 540QB 640QB 56QM 57QM 58QM 59QM 60QM 61QM 62QM 63QM 200QM 201QM 202QM 203QM 208QM 209QM Manpower TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: EATON Service Bulletin No. FRH050002-28-2 **CONF ALL A. GENERAL **CONF 001 (1) Subtask 281209-839-402-001 - Documentation Manpower Resources Skills NON SPECIFIC Write in the applicable aircraft records that you have done all the work given in this Service Bulletin. (2) Subtask 281209-910-401-001 - Standard Practices Manpower Resources Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 28-11-00-100-001 Structural Repair Manual (SRM) 51-11-00 51-11-13 51-76-12 (a) Damage Classification (Refer to SRM 51-11-00). (b) Damage/Defect Reporting (Refer to SRM 51-11-13). (c) Repair of Fuel Tank Sealing (Refer to SRM 51-76-12). (d) Cleaning of Fuel Tanks (Refer to AMM Task 28-11-00-100-001). **CONF 002 (1) Subtask 281209-839-402-001 - Documentation Manpower Resources Skills NON SPECIFIC Write in the applicable aircraft records that you have done all the work given in this Service Bulletin. DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 36 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (2) Subtask 281209-910-401-001 - Standard Practices Manpower Resources Skills AIRFRAME References Aircraft Maintenance Manual (AMM) Task 28-11-00-100-001 Structural Repair Manual (SRM) 51-11-00 51-11-13 51-76-12 (a) Damage Classification (Refer to SRM 51-11-00). (b) Damage/Defect Reporting (Refer to SRM 51-11-13). (c) Repair of Fuel Tank Sealing (Refer to SRM 51-76-12). (d) Cleaning of Fuel Tanks (Refer to AMM Task 28-11-00-100-001). **CONF ALL B. PREPARATION **CONF 001 (1) Subtask 281209-941-402-001 - Job Set-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The Job Set-up procedure is done in the worksteps for Inspection TASK 281209-832-895 001 INSPECTION . **CONF 002 (1) Subtask 281209-941-402-001 - Job Set-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The Job Set-up procedure is done in the worksteps for Inspection TASK 281209-832-895 001 INSPECTION . DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 37 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF ALL C. PROCEDURE **CONF 001 (1) Subtask 281209-900-401-001 - Replace the MFLI Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Manhours 2.00 Minimum number of person 1 Subtask elapsed time 2.00 Skills AIRFRAME Material necessary to do the job Component COMPB01 ITEM NEW PART N ̊ QTY (UM) KEYWORD SEE NOTES FRH050002 1 HOUSING FRH050003 1 HOUSING FRH050004 1 HOUSING FRH050005 1 HOUSING FRH050006 1 HOUSING NOTE: Operators of CONF 001 aircraft must select the applicable replacement MFLI (HOUSING) necessary from the COMPB01. References Aircraft Maintenance Manual (AMM) Task 28-43-21-000-002 Task 28-43-21-400-002 Task 28-43-22-000-002 Task 28-43-22-400-002 (a) For FIN 56QM (57QM) 1 Remove (Refer to AMM Task 28-43-21-000-002): 1 Housing-Indicator, Magnetic Level 3508802-24 Discard
2 Install (Refer to AMM Task 28-43-21-400-002): 1 Housing-Indicator, Magnetic Level FRH050002

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 38 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (b) For FIN 58QM (59QM) 1 Remove (Refer to AMM Task 28-43-21-000-002): 1 Housing-Indicator, Magnetic Level 3508802-25 Discard

or 1 Housing-Indicator, Magnetic Level 3508802-34 Discard

2 Install (Refer to AMM Task 28-43-21-400-002): 1 Housing-Indicator, Magnetic Level FRH050003 (c) For FIN 60QM (61QM) 1 Remove (Refer to AMM Task 28-43-21-000-002): 1 Housing-Indicator, Magnetic Level 3508802-26
2 Install (Refer to AMM Task 28-43-21-400-002): 1 Housing-Indicator, Magnetic Level FRH050004 (d) For FIN 62QM (63QM) 1 Remove (Refer to AMM Task 28-43-21-000-002): 1 Housing-Indicator, Magnetic Level 3508802-27 Discard

2 Install (Refer to AMM Task 28-43-21-400-002): 1 Housing-Indicator, Magnetic Level FRH050005 (e) For FIN 64QM (65QM) NOTE: MFLI FIN 64QM (65QM) is attached to the access panel FIN 540RB (640RB). 1 Remove (Refer to AMM Task 28-43-22-000-002): 1 Housing-Indicator, Magnetic Level 3508802-28 Discard

or

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 39 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
1 Housing-Indicator, Magnetic Level 3508802-39 Discard

2 Install (Refer to AMM Task 28-43-22-400-002): 1 Housing-Indicator, Magnetic Level FRH050006 (2) Subtask 281209-900-402-001 - Replace the Top-Stop on Composite MFLI Work Zones and Access Panels Zone Access/Work location From 540 To 640 References Vendor Service Bulletin (VSB) EATON FRH050002-28-2 (a) If necessary, replace the top-stop (Refer to EATON Service Bulletin No. FRH050002-28-2). (3) Subtask 281209-832-402-001 - Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Manhours 1.00 Minimum number of person 1 Subtask elapsed time 1.00 Skills AIRFRAME (a) If an MFLI top-stop is found to be missing: - do a full check of the fuel tanks to find the MFLI top-stop - do a full check for any damage which may have been caused by the missing MFLI top-stop - repair any damage as necessary. **CONF 002 (1) Subtask 281209-900-401-002 - Replace the MFLI Work Zones and Access Panels Zone Access/Work location From 540
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 40 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

To 640 Manpower Resources Manhours 2.00 Minimum number of person 1 Subtask elapsed time 2.00 Skills AIRFRAME Material necessary to do the job Component COMPB02 ITEM NEW PART N ̊ QTY (UM) KEYWORD SEE NOTES 57-0001 1 HOUSING FRH050002 1 HOUSING FRH050003 1 HOUSING FRH050004 1 HOUSING FRH050005 1 HOUSING FRH050007 1 HOUSING FRH050008 1 HOUSING FRH050009 1 HOUSING NOTE: Operators of CONF 002 aircraft must select the applicable replacement MFLI (HOUSING) necessary from the COMPB02. References Aircraft Maintenance Manual (AMM) Task 28-43-21-000-004 Task 28-43-21-400-004 Task 28-43-22-000-004 Task 28-43-22-400-004 (a) For FIN 56QM (57QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-24 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050002 (b) For FIN 58QM (59QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-25 Discard

or DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 41 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
1 Housing-Indicator, Magnetic Level 3508802-34 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050003 (c) For FIN 60QM (61QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-26 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050004 (d) For FIN 62QM (63QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-27 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050005 (e) For FIN 208QM (209QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-76 Discard

or 1 Housing-Indicator, Magnetic Level 3508802-91 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050009

or 1 Housing-Indicator, Magnetic Level 57-0001

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 42 7

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# @A318/A319/A320/A321 SERVICE BULLETIN (f) For FIN 200QM (201QM) 1 Remove (Refer to AMM Task 28-43-21-000-004): 1 Housing-Indicator, Magnetic Level 3508802-75 Discard

2 Install (Refer to AMM Task 28-43-21-400-004): 1 Housing-Indicator, Magnetic Level FRH050008 (g) For FIN 202QM (203QM) NOTE: MFLI FIN 202QM (203QM) is attached to the access panel FIN 540QB (640QB). 1 Remove (Refer to AMM Task 28-43-22-000-004): 1 Housing-Indicator, Magnetic Level 3508802-74 Discard

2 Install (Refer to AMM Task 28-43-22-400-004): 1 Housing-Indicator, Magnetic Level FRH050007 (2) Subtask 281209-900-402-001 - Replace the Top-Stop on Composite MFLI Work Zones and Access Panels Zone Access/Work location From 540 To 640 References Vendor Service Bulletin (VSB) EATON FRH050002-28-2 (a) If necessary, replace the top-stop (Refer to EATON Service Bulletin No. FRH050002-28-2). (3) Subtask 281209-832-402-001 - Inspect the Fuel Tank for any Damage Caused by Missing MFLI Top-stop Work Zones and Access Panels Zone Access/Work location From 540 To 640

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 43 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
Manpower Resources Manhours 1.00 Minimum number of person 1 Subtask elapsed time 1.00 Skills AIRFRAME (a) If an MFLI top-stop is found to be missing: - do a full check of the fuel tanks to find the MFLI top-stop - do a full check for any damage which may have been caused by the missing MFLI top-stop - repair any damage as necessary. **CONF ALL D. TEST **CONF 001 (1) Subtask 281209-790-401-001 - Do a Leak Test Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The necessary leak tests are included in the AMM references for MFLI installation and Access Panel installation. (2) Subtask 281209-720-402-001 - Do a Functional Test (BITE) of the Fuel Quantity Sensors Manpower Resources Skills AIRFRAME (a) The necessary functional tests are included in the AMM references for MFLI installation. **CONF 002 (1) Subtask 281209-790-401-001 - Do a Leak Test Work Zones and Access Panels Zone Access/Work location From 540 To 640

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 44 7

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# @A318/A319/A320/A321 SERVICE BULLETIN
Manpower Resources Skills AIRFRAME (a) The necessary leak tests are included in the AMM references for MFLI installation and Access Panel installation. (2) Subtask 281209-720-402-001 - Do a Functional Test (BITE) of the Fuel Quantity Sensors Manpower Resources Skills AIRFRAME (a) The necessary functional tests are included in the AMM references for MFLI installation. **CONF ALL E. CLOSE-UP **CONF 001 (1) Subtask 281209-942-401-001 - Close-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The Close-up procedure is done in the worksteps for Inspection TASK 281209-832-895 001 INSPECTION . **CONF 002 (1) Subtask 281209-942-401-001 - Close-up Work Zones and Access Panels Zone Access/Work location From 540 To 640 Manpower Resources Skills AIRFRAME (a) The Close-up procedure is done in the worksteps for Inspection TASK 281209-832-895 001 INSPECTION .

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 45 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF ALL

QUESTION
ACTION
FINDING NO GET ACCESS TO THE WING TANKS AND VISUALLY CHECK THE TOP STOP OF EACH MFLI OR COMPARE THE PART NUMBERS (PN) IF VISIBLE. DETERMINE WHICH TYPE OF TOP STOP RETENTION DEVICE IS INSTALLED AS FOLLOWS:

IS THE INSTALLED

MFLI OF THE ’S’ SHAPED LOCKWIRE DESIGN ? NO FURTHER ACTIONS NECESSARY

THE MFLI MUST BE REPLACED WITH A COMPOSITE MFLI OF PN SERIES FRH05000 (OR A METAL MFLI OF THE ’TRAPPED WIRE’ DESIGN IN SOME LOCATIONS). ADDITIONALLY, PLEASE REPORT TO AIRBUS THE MFLI

LOCATION AND THE AIRCRAFT MSN

WAS THE TOP STOP MISSING ?

FIND AND REMOVE THE TOP STOP FROM THE AIRCRAFT AND INSPECT THE AIRCRAFT FOR DAMAGE BEFORE FURTHER FLIGHT YES YES

NO NO FURTHER ACTIONS NECESSARY

N_SB_281209_7_FAAA_01_01 BEFORE THE THRESHOLD GIVEN IN PARA.1.E.(2)

Figure A-UFAAA - Sheet 01 Inspection Flow Chart
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 46 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF 001

N_SB_281209_7_BAAA_01_00 56QM (57QM)

106QM (107QM)

108QM (109QM)

110QM (111QM)

112QM (113QM) RIB1
RIB2

RIB7

RIB10

RIB13

RIB16

RIB19
RIB21 104QM (105QM)

58QM (59QM)

60QM (61QM)

62QM (63QM)

64QM (65QM)

MAGNETIC FUEL LEVEL INDICATOR KEY: LH WING SHOWN RH WING SIMILAR

Figure A-UBAAA - Sheet 01 Location of MFLIs
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 47 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF 002

56QM (57QM)

106QM (107QM)

108QM (109QM)

110QM (111QM) RIB1
RIB2

RIB7

RIB10

RIB13

RIB16

RIB19
RIB21 104QM

(59QM)

(61QM)

(63QM)

MAGNETIC FUEL LEVEL INDICATOR KEY: LH WING SHOWN RH WING SIMILAR

N_SB_281209_7_BAAB_01_00 (209QM) 210QM (211QM)

(201QM) 204QM (205QM) (203QM) 206QM (207QM) (105QM)

58QM

60QM

62QM

208QM

200QM

202QM

Figure A-UBAAB - Sheet 01 Location of MFLIs
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 48 7

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# @A318/A319/A320/A321 SERVICE BULLETIN

**CONF ALL

N_SB_281209_7_BBAA_01_00 MFLI PART NUMBER 3508802 WITH A S−SHAPED LOCKWIRE 01 **NOTE:**
MFLI PART NUMBER 3508802 WITH A TRAPPED WIRE 02 MFLI PART NUMBER FRM050002 / 3 / 4 / 5 / 6 / 7 / 8 / 9 03 WITH BONDED RUBBER TOP−STOP. 01 TOP−STOP TOP−STOP TOP−STOP



## A **B C**  02 03 

### A **B C** 

FLOAT

OUTER TUBE

Figure A-UBBAA - Sheet 01 Inspection of Typical MFLI
DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 49 7

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# @A318/A319/A320/A321 SERVICE BULLETIN REPORTING SHEET 

### TITLE: FUEL - TANK - INSPECTION OF THE MAGNETIC FUEL LEVEL INDICATOR MODIFICATION No.: None Please complete the appropriate item (A or B): A - SB WILL BE embodied YES/NO (if NO please comment) If YES, aircraft concerned (as per SB effectivity by default) and planned dates (month/year) of embodiment:

B - SB HAS BEEN embodied on aircraft: Operator comments:
From Airline: Name/Title: Signature: Date: If operational documentation is affected (see Paragraph 1.K of this SB): If information is needed prior to next normal revision or prior to SB embodiment, please indicate required service(s): Either: Modification Operational Impact (MOI), if available YES/NO Or : Intermediate revision YES/NO Important Information: This SB will only be incorporated in your maintenance and operational documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With the next feasible revision, this will result in - Updating of maintenance documentation to show pre and post SB data. - Updating of maintenance and operational documentation to show post SB data after embodiment. If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically include them in the manual revisions. Refer to SIL 00-037 for detailed information. Please return this completed sheet to: AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Attn: SDC32 Technical Data and Documentation Services FAX: (+33) 5 61 93 28 06 e-mail: sb.reporting@airbus.com or via your Resident Customer Support Office. Alternatively, SB lists via letters or fax are also accepted.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 1 7

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# @A318/A319/A320/A321 SERVICE BULLETIN QUALITY PERCEPTION FORM Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data that you provide us will be used to analyse areas of difficulties and to take corrective action to further improve the quality of our Service Bulletins. We thank you for the time you have taken in completing this form. (Please rate on a scale of 1 to 4, with 4 being the highest score) - Quality rating of this SB 4321 - Quality rating of the Accomplishment Instructions 4321 - Quality rating of the Illustrations 4321 - Is this SB easy to understand ? Y/N If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a short description of the issue. Planning Material Instructions X Effectivity X Kit content X Preparation X Reason X List of Materials Operator Supplied X Mod/Inspection X Manpower X Industry support X Test X References X Re-identification X Close-Up X Publication X Tooling X Illustrations Comments:

Operator: Date: Name/Title: Please return this form to: AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Attn : SEM4 Service Bulletins Management FAX : (33) 5 61 93 42 51 Or via your Resident Customer Support Office.

DATE: Dec 12/11 SERVICE BULLETIN No.: A320-28-1209 REVISION No.: 00 - Dec 12/11 Page: 1 7

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