[Federal Register Volume 72, Number 36 (Friday, February 23, 2007)]
[Rules and Regulations]
[Pages 8089-8099]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E7-2985]


=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-25948; Directorate Identifier 2006-NE-32-AD; 
Amendment 39-14951; AD 2007-04-19]
RIN 2120-AA64


Airworthiness Directives; Superior Air Parts, Inc. (SAP), Cast 
Cylinder Assemblies Part Numbers Series: SA47000L, SA47000S, SA52000, 
SA55000, SL32000W, SL32000WH, SL32006W, SL36000TW, SL36000W, and 
SL36006W

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule; request for comments.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain SAP cast cylinder assemblies installed in Teledyne Continental 
Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming 
Engines (LE) 320, 360, and 540 series reciprocating engines, Avco 
Lycoming (AL) 540 series reciprocating engines, and Superior Air Parts, 
Inc. (SAP) 360 series reciprocating engines. This AD requires removing 
from service certain SAP part numbered (P/N) cast cylinder assemblies 
installed in TCM, LE, and AL reciprocating engines. This AD also 
requires removing from service certain cast cylinder assemblies 
installed as original equipment in SAP reciprocating engines, or in 
certain overhauled or repaired SAP reciprocating engines. This AD 
results from nine separated SAP cylinder assemblies in TCM 
reciprocating engines and one in LE reciprocating engines. We are 
issuing this AD to prevent cylinder separation that can lead to engine 
failure, a possible engine compartment fire, and damage to the 
airplane.

DATES: This AD becomes effective March 12, 2007.
    We must receive any comments on this AD by April 24, 2007.

ADDRESSES: Use one of the following addresses to comment on this AD:
    <bullet> DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
    <bullet> Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
    <bullet> Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, 
Washington, DC 20590-0001.
    <bullet> Fax: (202) 493-2251.
    <bullet> Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: Jurgen Priester, Aerospace Engineer, 
Special Certification Office, FAA, Rotorcraft Directorate, Southwest 
Regional Headquarters, 2601 Meacham Blvd., Fort Worth, Texas 76137; 
telephone (817) 222-5159; fax (817) 222-5785.

SUPPLEMENTARY INFORMATION: SAP informed the FAA on July 12, 2006, that 
at least nine SAP cylinder assemblies installed in TCM 470, 520, and 
550 series reciprocating engines and one installed in LE 320, 360, and 
540 series reciprocating engines had separated at the cylinder head-to-
barrel threaded interface because SAP omitted a heat treat process step 
during cylinder barrel manufacture. This omission resulted in higher 
stresses in the cylinder head-to-barrel threaded interface, leading to 
fatigue cracking and cylinder head separation. The lowest time-in-
service (TIS) for a cylinder assembly known to have separated from this 
defect is 202 hours TIS. SAP isolated this defect to a specific 
production lot of 1,354 barrel forgings used as original equipment on 
SAP O-360 engines and in SAP PMA cylinder assemblies as replacement 
parts for various TCM, LE, and AL engine models. This AD addresses the 
barrels used in SAP PMA cylinders installed in the engines listed 
below.

                      Cylinder Assembly Eligibility
------------------------------------------------------------------------
             Series engines                  P/N cylinder assemblies
------------------------------------------------------------------------
TCM 470, 520, and 550..................  SA47000L-A1, SA47000L-A20P,
                                          SA47000S-A1, SA47000S-A20P,
                                          SA47000S-A21P, SA52000-A1,
                                          SA52000-A20P, SA52000-A21P,
                                          SA52000-A22P, SA52000-A23P,
                                          SA55000-A1, or SA55000-A20P.

[[Page 8090]]

 
LE 320, 360, and 540 and AL IGO 540....  SL32000W-A1, SL32000W-A20P,
                                          SL32000W-A21P, SL32000WH-A1,
                                          SL32000WH-A20P, SL32006W-A1,
                                          SL32006W-A20P, SL32006W-A21P,
                                          SL36000TW-A1, SL36000TW-A20P,
                                          SL36000TW-A21P, SL36000TW-
                                          A22P, SL36000W-A1, SL36000W-
                                          A20P, SL36000W-A21P, SL36006W-
                                          A1, SL36006W-A20P, or SL36006W-
                                          A21P.
SAP 360................................  SL36006W-A20P.
------------------------------------------------------------------------

FAA's Determination and Requirements of This AD

    The unsafe condition described previously is likely to exist or 
develop on other TCM 470, 520, and 550; LE 320, 360, and 540; AL 540, 
and SAP 360 series reciprocating engines of the same type design with 
SAP cast cylinder assemblies that have as original equipment, or have 
been overhauled or repaired using SAP part numbers listed in the table 
above. For that reason, we are issuing this AD to prevent cylinder 
separation which can lead to engine failure, a possible engine 
compartment fire, and damage to the airplane. This AD requires removing 
from service installed SAP cast cylinder assemblies listed in the table 
above, no later than 150 hours total TIS to preclude cylinder head 
fatigue failure and separation at the head-to-barrel threaded 
interface.

FAA's Determination of the Effective Date

    Since an unsafe condition exists that requires the immediate 
adoption of this AD, we have found that notice and opportunity for 
public comment before issuing this AD are impracticable, and that good 
cause exists for making this amendment effective in less than 30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety and was not preceded by notice and an opportunity for public 
comment; however, we invite you to send us any written relevant data, 
views, or arguments regarding this AD. Send your comments to an address 
listed under ADDRESSES. Include ``AD Docket No. FAA-2006-25948; 
Directorate Identifier 2006-NE-32-AD'' in the subject line of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the rule that might 
suggest a need to modify it.
    We will post all comments we receive, without change, to http://dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this AD. Using the search function of the DMS Web 
site, anyone can find and read the comments in any of our dockets, 
including the name of the individual who sent the comment (or signed 
the comment on behalf of an association, business, labor union, etc.). 
You may review the DOT's complete Privacy Act Statement in the Federal 
Register published on April 11, 2000 (65 FR 19477-78) or you may visit 
http://dms.dot.gov.

Examining the AD Docket

    You may examine the docket that contains the AD, any comments 
received, and any final disposition in person at the Docket Management 
Facility between 9 a.m. and 5 p.m., Monday through Friday, except 
Federal holidays. The Docket Office (telephone (800) 647-5227) is 
located on the plaza level of the Department of Transportation Nassif 
Building at the street address stated in ADDRESSES. Comments will be 
available in the AD docket shortly after the DMS receives them.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD will not have a 
substantial direct effect on the States, on the relationship between 
the national Government and the States, or on the distribution of power 
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary at the 
address listed under ADDRESSES.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

Adoption of the Amendment

0
Under the authority delegated to me by the Administrator, the Federal 
Aviation Administration amends part 39 of the Federal Aviation 
Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2007-04-19 Superior Air Parts, Inc.: Amendment 39-14951. Docket No. 
FAA-2006-25948; Directorate Identifier 2006-NE-32-AD.

[[Page 8091]]

Effective Date

    (a) This airworthiness directive (AD) becomes effective March 
12, 2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Superior Air Parts, Inc. (SAP), cast 
cylinder assemblies, part numbers (P/Ns): SA47000L-A1, SA47000L-
A20P, SA47000S-A1, SA47000S-A20P, SA47000S-A21P, SA52000-A1, 
SA52000-A20P, SA52000-A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, 
SA55000-A20P installed in Teledyne Continental Motors (TCM) 470, 
520, and 550 series reciprocating engines. These P/N cylinder 
assemblies may be installed in the TCM engine models listed in the 
following Table 1.

          Table 1.--Affected Teledyne Continental Engine Models
------------------------------------------------------------------------
              Engine model
------------------------------------------------------------------------
O-470..................................  -G, -K, -L, -M, -P, -R, -S, -U.
IO-470.................................  -C, -D, -E, -F, -G, -H, -L, -M,
                                          -N, -P, -R, -S, -U, -V.
IO-520.................................  -A, B, BA, C, CB, D, E, F, J,
                                          K, L, M, BB, MB.
TSIO-520...............................  -AF, B, BB, C, CE, D, DB, E,
                                          EB, G, H, J, JB, K, KB, L, LB,
                                          M, N, NB, P, R, T, UB, VB, WB.
IO-550.................................  -A, B, C, D, E, F, L.
------------------------------------------------------------------------

    These engine models are installed in, but not limited to, the 
aircraft models listed in the following Table 2:

      Table 2.--Teledyne Continental Motors-Related Aircraft Models
------------------------------------------------------------------------
                                       Aircraft         Aircraft model
          Engine model               manufacturer         designation
------------------------------------------------------------------------
IO-470-C........................  Beechcraft........  J, K, M35.
IO-470-C........................  Navion............  Navion.
IO-470-D........................  Cessna............  310 G & H.
IO-470-D........................  Rockwell..........  200 A, B, & C.
IO-470-E........................  Cessna............  210 & A.
IO-470-F........................  Bellanca..........  14-19-3.
IO-470-F........................  Cessna............  185.
IO-470-H........................  Navion............  Range Master.
IO-470-L........................  Beechcraft........  B55 Baron.
IO-470-M........................  Gulfstream........  500 A.
IO-470-N........................  Beechcraft........  N & P.
IO-470-N........................  Beechcraft........  G33.
IO-470-S........................  Cessna............  210 B & C.
IO-470-S........................  Cessna............  205.
IO-470-U........................  Cessna............  310 I & J.
IO-470-V/VO.....................  Cessna............  310K, L, N, P, &
                                                       Q.
IO-520-A........................  Cessna............  210 D, E, F, G, &
                                                       H.
IO-520-A........................  Cessna............  206.
IO-520-A........................  Cessna............  P206.
IO-520-A........................  Rockwell..........  200 D.
IO-520-B........................  Beechcraft........  36 Bonanza.
IO-520-B........................  Beechcraft........  A36.
IO-520-B........................  Navion............  Range Master.
IO-520-BA.......................  Beechcraft........  A36.
IO-520-BA.......................  Beechcraft........  S & V35, V35A,
                                                       V35B.
IO-520-BA.......................  Beechcraft........  C33 A.
IO-520-BA.......................  Beechcraft........  E33 A & C.
IO-520-BA.......................  Beechcraft........  F33 A & C.
IO-520-BA.......................  Navion............  Range Master.
IO-520-BB.......................  Beechcraft........  A36.
IO-520-BB.......................  Beechcraft........  V35B.
IO-520-BB.......................  Beechcraft........  F33 A.
IO-520-C & CB...................  Beechcraft........  C55-E55 Baron.
IO-520-D........................  Bellanca..........  17-30 Viking.
IO-520-D........................  Cessna............  A188-300 AG Truck.
IO-520-D........................  Cessna............  185.
IO-520-E........................  (Cessna 310)......  Exec 600.
IO-520-E........................  (Beech Baron).....  Pres 600.
IO-520-F........................  Cessna............  207.
IO-520-F........................  Cessna............  U206.
IO-520-K........................  Bellanca..........  17-30A.
IO-520-L........................  Cessna............  210 K, L, M, N, &
                                                       R.
IO-520-L........................  Cessna............  210N II.
IO-520-L........................  Cessna............  210R.
IO-520-M........................  Cessna............  310R.
IO-520-MB.......................  Cessna............  310R.
IO-550-A........................  Cessna............  310 Conversion.
IO-550-B........................  Beechcraft........  A36.
IO-550-B........................  (Beech Bonanza)...  Foxstar.
IO-550-C........................  Beechcraft........  58 Baron.
IO-550-D........................  Cessna............  185/188
                                                       Conversion.
IO-550-E........................  Cessna............  310 Conversion.
IO-550-F........................  Cessna............  206/207
                                                       Conversion.
IO-550-L........................  Cessna............  210 Conversion.

[[Page 8092]]

 
O-470-M.........................  Cessna............  310.
O-470-G.........................  Beechcraft........  H35.
O-470-K.........................  Bellanca..........  14-19-2.
O-470-K.........................  Cessna............  180 (230 HP).
O-470-L.........................  Cessna............  182.
O-470-L.........................  Cessna............  180D.
O-470-M.........................  Cessna............  310 B.
O-470-P.........................  Navion............  Navion.
O-470-R.........................  Cessna............  188-230.
O-470-R.........................  Cessna............  182.
O-470-R.........................  Cessna............  180 E-J.
O-470-S.........................  Cessna............  182.
O-470-U.........................  Cessna............  182.
O-470-U.........................  Cessna............  180 K.
TSIO-520-AF.....................  Cessna............  P210N II.
TSIO-520-B......................  Cessna............  320D, E & F.
TSIO-520-B......................  Cessna............  T310-Q & R.
TSIO-520-BB.....................  Cessna............  T310R.
TSIO-520-BE.....................  Piper.............  PA-46-310 Malibu.
TSIO-520-C......................  Cessna............  T210 F, G, & H.
TSIO-520-C......................  Cessna............  TU206.
TSIO-520-C......................  Cessna............  TP206.
TSIO-520-C&CB...................  Beechcraft........  58 Baron.
TSIO-520-CE.....................  Cessna............  T210R.
TSIO-520-CF.....................  Cessna............  P210R.
TSIO-520-D......................  Beechcraft........  V35, V35A, V35B-
                                                       TC.
TSIO-520-E......................  Cessna............  402, A & B.
TSIO-520-E......................  Cessna............  401, A & B.
TSIO-520-EB.....................  Cessna............  335.
TSIO-520-G......................  Cessna............  T207.
TSIO-520-H......................  Cessna............  T210 J, K, & L.
TSIO-520-J......................  Cessna............  210 J.
TSIO-520-J......................  Cessna............  414.
TSIO-520-J......................  Riley Conversions.  340 Super Riley.
TSIO-520-L&LB...................  Beechcraft........  58P Baron.
TSIO-520-L&LB...................  Beechcraft........  58TC Baron.
TSIO-520-M......................  Cessna............  T207.
TSIO-520-M......................  Cessna............  TU206.
TSIO-520-N......................  Cessna............  414-II Chancellor.
TSIO-520-N......................  Cessna............  340.
TSIO-520-NB.....................  Cessna............  414-II.
TSIO-520-NB.....................  Cessna............  340.
TSIO-520-P......................  Cessna............  P210N.
TSIO-520-R......................  Cessna............  T210 M.
TSIO-520-R......................  Cessna............  T210N II.
TSIO-520-T......................  Cessna............  T188C AG Husky.
TSIO-520-UB.....................  Beechcraft........  A36TC Bonanza.
TSIO-520-UB.....................  Beechcraft........  B36TC.
TSIO-520-VB.....................  Cessna............  402 C.
TSIO-520-WB.....................  Beechcraft........  58P Baron.
TSIO-520-WB.....................  Beechcraft........  58TC Baron.
------------------------------------------------------------------------

    This AD also applies to SAP, cast cylinder assemblies, P/Ns 
SL32000W-A1, SL32000W-A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-
A20P, SL32006W-A1, SL32006W-A20P, SL32006W-A21P, SL36000TW-A1, 
SL36000TW-A20P, SL36000TW-A21P, SL36000TW-A22P, SL36000W-A1, 
SL36000W-A20P, SL36000W-A21P, SL36006W-A1, SL36006W-A20P, and 
SL36006W-A21P installed in Lycoming Engines (LE) 320, 360, and 540 
series reciprocating engines and Avco Lycoming 540 series 
reciprocating engines. These P/N cylinder assemblies may be 
installed in the LE and AL engine models listed in the following 
Table 3.

   Table 3.--Affected Lycoming Engines and Avco Lycoming Engine Models
------------------------------------------------------------------------
              Engine model
------------------------------------------------------------------------
O-320..................................  -A, -B, -C, -D, -E, H.
IO-320.................................  -B, -D, -E.
LIO-320................................  -B.
AIO-320................................  -A, -B, -C.
AEIO-320...............................  -D, -E.
O-360..................................  -A, -B, -C, -D, -F, -G, -J.
IO-360.................................  -B, -L, -M.
LO-360.................................  -A.
AEIO-360...............................  -B, -H.
HO-360.................................  -C.
HIO-360................................  -B.
O-540..................................  -A, -B, -E, -F, -G, -H, -J.
IO-540.................................  -A, -C, -D, -N, -T, -V, -W.
AEIO-540...............................  -D.
------------------------------------------------------------------------

    These engine models are installed in, but not limited to, the 
aircraft models listed in the following Table 4:

[[Page 8093]]



  Table 4.--Lycoming Engines and Avco Lycoming-Related Aircraft Models
------------------------------------------------------------------------
                                     Aircraft          Aircraft model
         Engine model              manufacturer         designation
------------------------------------------------------------------------
O-320-A.......................  Mooney Aircraft..  Mark 20A.
O-320-A1A.....................  Piper Aircraft...  PA-23-150 Apache.
O-320-A1A.....................  Piper Aircraft...  PA-22-150 Tri-Pacer.
O-320-A1A.....................  Piper Aircraft...  PA-22S-150 Tri-Pacer.
O-320-A1A.....................  Piper Aircraft...  PA-25 Pawnee.
O-320-A1A.....................  Doyne Aircraft...  Doyn-Cessna
                                                    170,170A,170B.
O-320-A1A.....................  Dinfia...........  Ranquel 1A-46.
O-320-A1A.....................  Simmering-Graz     Flamingo SGP-M-222.
                                 Pauker.
O-320-A1A.....................  Aviamilano.......  Scricciolo P-19.
O-320-A1A.....................  Vos Helicopter Co  Spring Bok.
O-320-A1A.....................  Mooney Aircraft..  Mark 20A.
O-320-A1B.....................  Piper Aircraft...  PA-22-150 Tri-Pacer.
O-320-A1B.....................  Piper Aircraft...  PA-22S-150 Tri-Pacer.
O-320-A1B.....................  Piper Aircraft...  PA-23 Apache.
O-320-A1B.....................  Doyne Aircraft...  Doyn-Cessna
                                                    170,170A,170B.
O-320-A1B.....................  S.O.C.A.T.A......  Horizon (Gardan).
O-320-A2A.....................  Piper Aircraft...  PA-22-150.
O-320-A2A.....................  Piper Aircraft...  PA-22S-150.
O-320-A2A.....................  Piper Aircraft...  Agriculture PA-18A-
                                                    150.
O-320-A2A.....................  Piper Aircraft...  Super Cub PA-18-150.
O-320-A2A.....................  Piper Aircraft...  Caribbean PA-22-150.
O-320-A2A.....................  Piper Aircraft...  PA-25 Pawnee.
O-320-A2A.....................  Lake Aircraft....  Colonial C1.
O-320-A2A.....................  Intermountain      Call Air Texas A-5, A-
                                 Mfg. Co.           5T.
O-320-A2A.....................  Rawdon Bros......  Rawdon T-1, T-15, T-
                                                    15D.
O-320-A2A.....................  Shinn Engineering  Shinn 2150-A.
O-320-A2A.....................  Dinfia...........  Ranquel 1A-46.
O-320-A2A.....................  Neiva............  1PD-5802.
O-320-A2A.....................  Sud..............  Gardan-Horizon (GY-
                                                    80).
O-320-A2A.....................  La Verda.........  Falco F8L Series II,
                                                    America.
O-320-A2A.....................  Malmo............  Vipan MF1-10.
O-320-A2A.....................  Kingsford Smith..  Autocrat SCRM-153.
O-320-A2B.....................  Aero Commander...  100.
O-320-A2B.....................  Piper Aircraft...  PA-22-150.
O-320-A2B.....................  Piper Aircraft...  PA-22S-150.
O-320-A2B.....................  Piper Aircraft...  Cherokee PA-28-150.
O-320-A2B.....................  Piper Aircraft...  Super Cub PA-18-150.
O-320-A2B.....................  Champion Aircraft  Challenger 7GCA,
                                                    7GCB, 7KC.
O-320-A2B.....................  Champion Aircraft  Citabria 7GCAA,
                                                    7GCRC.
O-320-A2B.....................  Champion Aircraft  Agriculture 7GCBA.
O-320-A2B.....................  Beagle...........  Pup 150.
O-320-A2B.....................  Arctic...........  Interstate S1B2.
O-320-A2B.....................  Robinson           R-22.
                                 Helicopters.
O-320-A2C.....................  Robinson           R-22.
                                 Helicopters.
O-320-A2C.....................  Varga............  Kachina 2150a.
O-320-A2C.....................  Cicare...........  Cicare AG.
O-320-A2D.....................  Bellanca Aircraft  Citabria 150 (7GCAA).
O-320-A2D.....................  Bellanca Aircraft  Citabria 150S
                                                    (7GCBC).
O-320-A2D.....................  Bellanca.........  Citabria 150S
                                                    (7G(.HU).
O-320-A2F.....................  Cessna Aircraft..  177A.
O-320-A3A.....................  Piper Aircraft...  Apache PA-23.
O-320-A3A.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-A3A.....................  Corben-Fettes....  Globe Special (Globe
                                                    GC-1B).
O-320-A3B.....................  Piper Aircraft...  Apache PA-23.
O-320-A3B.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-A3B.....................  Teal II..........  TSC 1A2.
O-320-B1A.....................  Piper Aircraft...  Apache PA-23-160.
O-320-B1A.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-B1A.....................  Malmo............  Vipan MF1-10.
O-320-B1B.....................  Piper Aircraft...  Apache PA-23-160.
O-320-B1B.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-B2A.....................  Piper Aircraft...  PA-22-160.
O-320-B2A.....................  Piper Aircraft...  PA-22S-160.
O-320-B2B.....................  Piper Aircraft...  PA-22-160.
O-320-B2B.....................  Piper Aircraft...  PA-22S-160.
O-320-B2B.....................  Beagle...........  Airedale D5-160.
O-320-B2B.....................  Fuji-Heavy         Fuji F-200.
                                 Industries.
O-320-B2B.....................  Uirapuru.........  Aerotec 122.
O-320-B2C.....................  Robinson           R22-HP, Alpha, Beta.
                                 Helicopters.
O-320-B2D.....................  Maule............  MX-7-160.
O-320-B2E.....................  Lycon............
O-320-B3A.....................  Piper Aircraft...  Apache PA-23-160.

[[Page 8094]]

 
O-320-B3A.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-B3B.....................  Piper Aircraft...  PA-23-160 Apache.
O-320-B3B.....................  Doyn Aircraft....  Doyn-Cessna 170,
                                                    170A, 170B.
O-320-B3B.....................  Sud..............  Gardan (GY8O-160).
O-320-C1A.....................  Piper Aircraft...  Apache PA-23-160.
O-320-C1A.....................  Riley Aircraft...  Rayjay (Apache).
O-320-C1B.....................  Piper Aircraft...  Apache PA-23-160.
O-320-C3A.....................  Piper Aircraft...  Apache PA-23-160.
O-320-C3B.....................  Piper Aircraft...  Apache PA-23-160.
O-320-D1A.....................  Sud..............  Gardan (GY80).
O-320-D1A.....................  Gyroflug.........  Speed Cancard.
O-320-D1A.....................  Grob.............  G115.
O-320-D1D.....................  Gulfstream.......  GA-7.
O-320-D1F.....................  Slingsby.........  T67 Firefly.
O-320-D2A.....................  Piper Aircraft...  Cherokee PA-28S-160.
O-320-D2A.....................  Robin............  Major DR400-140B.
O-320-D2A.....................  Robin............  Chevalier DR-360, R-
                                                    3140.
O-320-D2A.....................  S.O.C.A.T.A......  Tampico TB9.
O-320-D2A.....................  Slingsby.........  T67C Firefly.
O-320-D2A.....................  Daetwyler........  MD-3-160.
O-320-D2A.....................  Nash Aircraft Ltd  Petrel.
O-320-D2A.....................  Aviolight........  P66D Delta.
O-320-D2A.....................  General Avia.....  Pinguino.
O-320-D2B.....................  Beechcraft.......  Musketeer A23.
O-320-D2B.....................  Piper Aircraft...  Cherokee PA-28-160.
O-320-D2J.....................  Cessna...........  Skyhawk 172 P.
O-320-D3G.....................  Piper Aircraft...  Cadet PA-28-161.
O-320-D3G.....................  Piper Aircraft...  Warrior II.
O-320-E1A.....................  Grob.............  G115.
O-320-E1C.....................  M.B.B              Monsun (BO-209-B).
                                 (Messerschmitt-
                                 Boelkow-Blohm).
O-320-E1F.....................  M.B.B............  Monsun (BO-209-B).
O-320-E2A.....................  Piper Aircraft...  Cherokee PA-28-140.
O-320-E2A.....................  Piper Aircraft...  Cherokee PA-28-150.
O-320-E2A.....................  Robin............  Major (DR-340).
O-320-E2A.....................  Robin............  Sitar.
O-320-E2A.....................  Robin............  Bagheera (GY-100-
                                                    135).
O-320-E2A.....................  S.O.C.A.T.A......  Super Rallye (MS-
                                                    886).
O-320-E2A.....................  S.O.C.A.T.A......  Rallye Commodore (MS-
                                                    892).
O-320-E2A.....................  Siai-Marchetti...  S-202.
O-320-E2A.....................  F.F.A............  Bravo (AS-202/15).
O-320-E2A.....................  Partenavia.......  Oscar (P66B).
O-320-E2A.....................  Partenavia.......  Bucker (131 APM).
O-320-E2A.....................  Aeromot..........  Paulistina P-56.
O-320-E2A.....................  Pezetel..........  Koliber 150.
O-320-E2C.....................  Beechcraft.......  Musketeer (B19).
O-320-E2C.....................  Beechcraft.......  Musketeer III (M-
                                                    23111).
O-320-E2C.....................  M.B.B............  Monsun (BO-209-B).
O-320-E2D.....................  Beechcraft.......  B19 Sport.
O-320-E2D.....................  Cessna...........  177.
O-320-E2D.....................  Cessna...........  172 I-M.
O-320-E2D.....................  Piper Aircraft...  PA-28-151.
O-320-E2D.....................  Piper Aircraft...  PA-28-140.
O-320-E2D.....................  Cessna...........  Cardinal (172.1,
                                                    177).
O-320-E2F.....................  M.B.B............  Monsun (BO-209-B).
O-320-E2F.....................  M.B.B............  Wassmer Pacific (WA-5
                                                    1).
O-320-E2G.....................  Gulfstream.......  AA5 Traveler.
O-320-E2G.....................  Gulfstream.......  AA5A Cheetah.
O-320-E3D.....................  Beechcraft.......  B19 Sport.
O-320-E3D.....................  Piper Aircraft...  Cherokee (140).
O-320-H2AD....................  Cessna...........  Skyhawk 172 N.
O-320-H2AD....................  Partenavia.......  P-66C.
O-320A2C......................  Varga............  Kachina 2150.
IO-320-B2A....................  Piper Aircraft...  Twin Comanche (PA-
                                                    30).
IO-320-B1C....................  Hi...............
IO-320-B1C....................  Shear............
IO-320-B1C....................  Wing.............
IO-320-B1D....................  Ted Smith          Aerostar.
                                 Aircraft.
IO-320-D1A....................  M.B.B............  Monsun (BO-209-C).
IO-320-D1B....................  M.B.B............  Monsun (BO-209-C).
IO-320-E1A....................  Champion.........  KCAB.
IO-320-E1A....................  M.B.B............  Monsun (BO-209-C).
IO-320-E1B....................  Bellanca Aircraft

[[Page 8095]]

 
IO-320-E2A....................  Champion.........  7 KCAB.
IO-320-E2A....................  Champion Aircraft  Citabria.
IO-320-E2B....................  Bellanca Aircraft
IO/LIO-320-B1A................  Piper Aircraft...  PA-30 Comanche (2).
IO/LIO-320-B1A................  Piper Aircraft...  Twin Comanche (PA-
                                                    39).
AIO-320-B1B...................  M.B.B............  Monsun (BO-209-C).
AEIO-320-D1B..................  Slingsby.........  T67M Firefly.
AEIO-320-D2B..................  Hundustan          HT-2.
                                 Aeronautlcs Ltd.
AEIO-320-E1A..................  Bellanca Aircraft
AEIO-320-E1A..................  Champion Aircraft
AEIO-320-EIB..................  Bellanca Aircraft
AEIO-320-EIB..................  Champion Aircraft  Decathalon (8KCAB-
                                                    CS).
AEIO-320-E2B..................  Bellanca Aircraft
AEIO-320-E2B..................  Champion Aircraft  Decathalon (8KCAB).
O-320-A1A.....................  Riley Aircraft...  Riley Twin.
O-360-A1A.....................  Beechcraft.......  Travel Air (95, B-
                                                    95).
O-360-A1A.....................  Piper Aircraft...  Comanche (PA-24).
O-360-A1A.....................  Intermountain      Call Air (A-6).
                                 Mfg. Co.
O-360-A1A.....................  Lake Aircraft....  Colonial (C-2, LA-4,
                                                    4A or 4P).
O-360-A1A.....................  Doyn Aircraft....  Doyn-Cessna (170B,
                                                    172, 172A, 172B).
O-360-A1A.....................  Mooney Aircraft..  Mark ``20B'' (M-20B).
O-360-A1A.....................  Earl Horton......  Pawnee (Piper PA-25).
O-360-A1A.....................  Dinfia...........  Ranquel (IA-51).
O-360-A1A.....................  Neiva............  (IPD-5901).
O-360-A1A.....................  Regente..........  (N-591).
O-360-A1A.....................  Wassmer..........  Super 4 (WA-50A).
O-360-A1A.....................  Wassmer..........  Sancy (WA-40).
O-360-A1A.....................  Wassmer..........  Baladou (WA-40).
O-360-A1A.....................  Wassmer..........  Pariou (WA-40).
O-360-A1A.....................  Sud..............  Gardan (GY-180).
O-360-A1A.....................  Bolkow...........  (207).
O-360-A1A.....................  Partenavia.......  Oscar (P-66).
O-360-A1A.....................  Siai-Marchetti...  (S-205).
O-360-A1A.....................  Procaer..........  Picchio (F-15-A).
O-360-A1A.....................  S.A.A.B..........  Safir (91-D).
O-360-A1A.....................  Malmo............  Vipan (MF-1OB).
O-360-A1A.....................  Aero Boero.......  AB-180.
O-360-A1A.....................  Beagle...........  Airedale (A-109).
O-360-A1A.....................  DeHavilland......  Drover (DHA-3MK3).
O-360-A1A.....................  Kingsford-Smith..  Bushmaster (J5-6).
O-360-A1A.....................  Aero Engine        Victa (R-2).
                                 Service Ltd.
O-360-A1AD....................  S.O.C.A.T.A......  Tabago TB-10.
O-360-A1D.....................  Piper Aircraft...  Comanche (PA-24).
O-360-A1D.....................  Lake Aircraft....  Colonial (LA-4, 4A or
                                                    4P).
O-360-A1D.....................  Doyn Aircraft....  Doyn-Beech (Beech
                                                    95).
O-360-A1D.....................  Mooney Aircraft..  Master 21 (M-20E).
O-360-A1D.....................  Mooney Aircraft..  Mark 20B, 20D, (M2OB,
                                                    M2OC).
O-360-A1D.....................  Mooney Aircraft..  Mooney Statesman (M-
                                                    20G).
O-360-A1D.....................  Dinfia...........  Querandi (IA-45).
O-360-A1D.....................  Wassmer..........  (WA-50).
O-360-A1D.....................  Malmo............  Vipan (MFI-10).
O-360-A1D.....................  Cessna Aircraft..  Skyhawk.
O-360-A1D.....................  Doyn Aircraft....  Doyn-Piper PA-23-160.
O-360-AIF6....................  Cessna Aircraft..  Cardinal.
O-360-AIF6D...................  Cessna Aircraft..  Cardinal 177.
O-360-AIF6D...................  Teal III.........  TSC (1A3).
O-360-A1G6....................  Aero Commander...
O-360-A1G6D...................  Beech Aircraft...  Duchess 76.
O-360-AIH6....................  Piper Aircraft...  Seminole (PA-44).
O-360-Al LD...................  Wassmer..........  Europa WA-52.
O-360-AIP.....................  Aviat............
O-360-AIP.....................  Husky............
O-360-A2A.....................  Center Est         Regente (DR-253).
                                 Aeronautique.
O-360-A2A.....................  S.O.C.A.T.A......  RalIye Commodore (MS-
                                                    893).
O-360-A2A.....................  Societe            Mousquetaire (D-140).
                                 Aeronautique
                                 Normande.
O-360-A2A.....................  Bolkow...........  Klemm (Kl-1 07C).
O-360-A2A.....................  Partenavia.......  Oscar (P-66).
O-360-A2A.....................  Beagle...........  Husky (D5-180) (J1-
                                                    U).
O-360-A2D.....................  Piper Aircraft...  Comanche PA-24.
O-360-A2D.....................  Piper Aircraft...  Cherokee C PA-28-180.
O-360-A2D.....................  Mooney Aircraft..  Master 21 (M-20D).
O-360-A2D.....................  Mooney Aircraft..  Mark 21 (M-20E).

[[Page 8096]]

 
O-360-A2E.....................  Std. Helicopter..
O-360-A2F.....................  Aero Commander...  Lark (100).
O-360-A2F.....................  Cessna Aircraft..  Cardinal.
O-360-A2G.....................  Beech Aircraft...  Sport.
O-360-A3A.....................  C.A.A.R.P.S.A.N..  (M-23111).
O-360-A3A.....................  Societe            Jodel (D-140C).
                                 Aeronautique
                                 Normande.
O-360-A3A.....................  Robin............  Regent (DR400/180).
O-360-A3A.....................  Robin............  Remorqueur (DR400/
                                                    180R).
O-360-A3A.....................  Robin............  R-3170.
O-360-A3A.....................  S.O.C.A.T.A......  Rallye 18OGT.
O-360-A3A.....................  S.O.C.A.T.A......  Sportavia Sportsman
                                                    (RS-180).
O-360-A3A.....................  Norman Aerospace   NAC-1 Freelance.
                                 Co.
O-360-A3A.....................  Nash Aircraft Ltd  Petre.
O-360-A3AD....................  S.O.C.A.T.A......  TB-l0.
O-360-A3AD....................  Robin............  Aiglon (R-l 180T).
O-360-A4A.....................  Piper Aircraft...  Cherokee ``D'' PA-28-
                                                    180.
O-360-A4D.....................  Varga............  Kachina.
O-360-A4G.....................  Beech Aircraft...  Musketeer Custom III.
O-360-A4K.....................  Grumman American.  Tiger.
O-360-A4K.....................  Beech Aircraft...  Sundowner 180.
O-360-A4M.....................  Piper Aircraft...  Archer II PA-28-18.
O-360-A4M.....................  Valmet...........  PIK-23.
O-360-A4N.....................  Cessna Aircraft..  172 (Optional).
O-360-A4P.....................  Penn Yan.........  Super Cub Conversion.
O-360-A5AD....................  C. Itoh and Co...  Fuji FA-200.
O-360-B2C.....................  Seabird Aviation.  SB7L.
O-360-C1A.....................  Intermountain      Call Air (A-6).
                                 Mfg. Co.
O-360-CIE.....................  Bellanca Aircraft  Scout (8GCBC-CS).
O-360-C1F.....................  Maule............  Star Rocket MX-7-180.
O-360-C1G.....................  Christen.........  Husky (A-1).
O-360-C2B.....................  Hughes Tool Co...  (269A).
O-360-C2D.....................  Hughes Tool Co...  (269A).
O-360-C2E.....................  Hughes Tool Co...  YHO-2HU Military.
O-360-C2E.....................  Bellanca Aircraft  Scout 8GCBC FP.
O-360-C4F.....................  Maule............  MX-7-180A.
O-360-C4P.....................  Penn Van.........  Super Cub Conversion.
O-360-F1A6....................  Cessna Aircraft..  Cutlass RG.
O-360-J2A.....................  Robinson.........  R22.
IO-360-B1A....................  Beech Aircraft...  Travel-Air (B-95A).
IO-360-B1A....................  Doyn Aircraft....  Doyn-Piper PA-23-200.
IO-360-B1B....................  Beech Aircraft...  Travel-Air (B-95B).
IO-360-B1B....................  Doyn Aircraft....  Doyn-Piper PA-23-200.
IO-360-B1B....................  Fuji.............  FA-200.
IO-360-B1D....................  United             See-Bee.
                                 Consultants.
IO-360-BIE....................  Piper Aircraft...  Arrow PA-28-180R.
IO-360-BIF....................  Utva.............  75.
IO-360-B2E....................  C.A.A.R.P........  C.A.P. (10).
IO-360-BIF6...................  Great Lakes......  Trainer.
IO-360-B1G6...................  American Blimp...  Spector 42.
IO-360-B2F6...................  Great Lakes......  Trainer.
LO-360-A1 G6D.................  Beech Aircraft...  Duchess.
LO-360-A1H6...................  Piper Aircraft...  Seminole (PA-44).
IO-360-EIA....................  T.R. Smith         Aerostar.
                                 Aircraft.
IO-360-L2A....................  Cessna Aircraft..  Skyhawk C-172.
IO-360-M1A....................  Diamond Aircraft.  DA-40.
IO-360-M1B....................  Vans Aircraft....  RV6, RV7, RV8.
IO-360-M1B....................  Lancair..........  360.
AIO-360-B1B...................  Moravan..........  Zim (Z-526-L).
AEIO-360-B1G6.................  Great Lakes......
AEIO-360-B2F..................  Mundry...........  CAP-10.
AEIO-360-B4A..................  Pitts............  S-1S.
AEIO-360-HIA..................  Bellanca Aircraft  Super Decathalon
                                                    (8KCAB-180).
AEIO-360-HIB..................  American Champion  Super Decathalon.
HO-360-B1A....................  Hughes Tool Co...  269A.
HO-360-B1B....................  Hughes Tool Co...  269A.
HO-360-C1A....................  Schweizer........  300C.
HIO-360-A1A...................  Hughes Tool Co...  300.
H1O-360-A1B...................  Silvercraft......
HIO-360-B1A...................  Hughes Tool Co...  Military 269-A-1.
HlO-360-BIB...................  Hughes Tool Co...  269A.
HIO-360-D1A...................  Hughes Tool Co...  269C, 300C.
HIO-360-D1A...................  Schweizer........  300C.

[[Page 8097]]

 
HIO-360-E1AD..................  Enstrom            F28C.
                                 Helicopter.
HIO-360-E1BD..................  Enstrom            F28C.
                                 Helicopter.
HIO-360-F1AD..................  Enstrom            Faicon F28F.
                                 Helicopter.
HIO-360-F1AD..................  Enstrom            Shark 280FX.
                                 Helicopter.
HIO-360-F1AD..................  Enstrom            Sentine F28F-P.
                                 Helicopter.
HIO-360-G1A...................  Schweizer........  CB.
LHIO-360-C1A..................  Silvercraft......  SH-4 Helicopter.
LHIO-360-C1B..................  Silvercraft......  SH-3 Helicopter.
O-540-AIA.....................  Rhein-Flugzeugbau  RF-1.
O-540-AIA5....................  Piper Aircraft...  Comanche PA-24-150.
O-540-AIA5....................  Helio............  Military H-250.
O-540-AIA5....................  Yoeman Aviation..  YA-1.
O-540-A1B5....................  Piper Aircraft...  Aztec PA-23-250.
O-540-A1B5....................  Piper Aircraft...  Comanche PA-24-250.
O-540-AIC5....................  Piper Aircraft...  Comanche PA-24-250.
O-540-A1D.....................  Found Bros.......  FBA-2C.
O-540-A1D.....................  Dornier..........  DO-28-B1.
O-540-AID5....................  Piper Aircraft...  Aztec PA-23-250.
O-540-AID5....................  Piper Aircraft...  Comanche PA-24-250.
O-540-AID5....................  Piper Aircraft...  Military Aztec U-1
                                                    1A.
O-540-AID5....................  Dornier..........  DO-28.
O-540-A2B.....................  Aero Commander...  500.
O-540-A2B.....................  Mld-States Mfg.    Twin Courier 11-500,
                                 Co.                U-5.
O-540-A3D5....................  Piper Aircraft...  Navy Aztec PA-23-250.
O-540-B1A5....................  Piper Aircraft...  Apache PA-23-235.
O-540-BIB5....................  Piper Aircraft...  Cherokee PA-24-250.
O-540-BIB5....................  Doyn Aircraft....  Doyn-Piper PA-24-250.
O-540-BID5....................  Wassmer..........  WA-421.
O-540-B2B5....................  Piper Aircraft...  Pawnee PA-24-235.
O-540-B2B5....................  Piper Aircraft...  Cherokee PA-28-235.
O-540-B2B5....................  Piper Aircraft...  Aztec PA-23-235.
O-540-B2B5....................  Intermountain      Call Air A-9.
                                 Mfg. Co.
O-540-B2B5....................  Rawdon Bros......  Rawdon T-l.
O-540-B2B5....................  S.O.C.A.T.A......  Rallye 235CA.
O-540-B2C5....................  Piper Aircraft...  Pawnee PA-24-235.
O-540-B4B5....................  Piper Aircraft...  Cherokee PA-28-235.
O-540-B4B5....................  Embraer..........  Corioca EMB-710.
O-540-B4B5....................  S.O.C.A.T.A......  Rallye 235GT.
O-540-B4B5....................  S.O.C.A.T.A......  Rallye 235C.
O-540-B4B5....................  Maule............  Star Racket MX-7-235.
O-540-B4B5....................  Maule............  Super Rocket M-6-235.
O-540-B4B5....................  Maule............  Super Std. Racket M-7-
                                                    235.
O-540-E4A5....................  Piper Aircraft...  Comanche PA-24-260.
O-540-E4A5....................  Aviamilano.......  Flamingo F-250.
O-540-E4A5....................  Siai-Marcbetti...  SF-260, SF-208.
O-540-E4B5....................  Britten-Norman...  BN-2.
                                Piper Aircraft...  Cherokee Six PA-32-
                                                    260.
O-540-E4C5....................  Pilatus Britten-   Islander BN-2A-26.
                                 Norman.
O-540-E4C5....................  Pilatus Britten-   Islander BN-2A-27.
                                 Norman.
O-540-E4C5....................  Pilatus Britten-   Islander II BN-2B-26.
                                 Norman.
O-540-E4C5....................  Pilatus Britten-   Islander BN-2A-2 1.
                                 Norman.
O-540-E4C5....................  Pilatus Britten-   Trislander BN-2A-Mark
                                 Norman.            111-2.
O-540-F1B5....................  Omega Aircraft...  BS-12D1.
O-540-F1B5....................  Robinson.........  R-44.
O-540-G1A5....................  Piper Aircraft...  Pawnee PA-25-260.
O-540-H1B5D...................  Aero Boero.......  260.
O-540-H2A5....................  Embraer..........  Impanema ``AG''.
O-540-H2A5....................  Gippsland........  GA-200.
O-540-H2B5D...................  Aero Boero.......  260.
O-540-J1A5D...................  Maule............  Star Rocket MX-7-235.
O-540-J1A5D...................  Maule............  Super Rocket M-6-235.
O-540-J1A5D...................  Maule............  Super Std. Rocket M-7-
                                                    235.
O-540-J3A5....................  Robin............  R-3000/235.
O-540-J3A5D...................  Piper Aircraft...  Dakota PA-28-236.
O-540-J3C5D...................  Cessna Aircraft..  Skylane RG.
IO-540-A1A5...................  Doyn Aircraft....  Doyn-Piper PA-23-250.
IO-540-A1A5...................  Riley Aircraft...  Rocket-Cessna 310.
IO-540-A1A5...................  Dornier..........  DO-8-B 1.
IO-540-A1A5...................  Siai-Marchetti...
IO-540-C1B5...................  Piper Aircraft...  Aztec B PA-23-250.
IO-540-C1B5...................  Piper Aircraft...  Comanche PA-24-250.
IO-540-C1C5...................  Riley Aircraft...  Turbo-Rocket.

[[Page 8098]]

 
IO-540-C4B5...................  Piper Aircraft...  Aztec C PA-23-250.
IO-540-C4B5...................  Piper Aircraft...  Aztec F.
IO-540-C4B5...................  Wassmer..........  WA4-2 1.
IO-540-C4B5...................  Avions Pierre      HR 100/250.
                                 Robin.
IO-540-C4B5...................  Bellanca Aircraft  Aries T-250.
IO-540-C4B5...................  Aerofab..........  Renegade 250.
IO-540-C4D5...................  S.O.C.A.T.A......  TB-20.
IO-540-C4DSD..................  S.O.C.A.T.A......  Trinidad TB-20.
IO-540-D4A5...................  Piper Aircraft...  Comanche PA-24-260.
IO-540-D4A5...................  Siai-Marchetti...  SF-260.
IO-540-D4B5...................  Cerva............  CE-43 Guepard.
IO-540-E1A5...................  Aero Commander...  500-E.
IO-540-EIB5...................  Aero Commander...  500-U.
IO-540-EIB5...................  Shrike...........  500-S.
IO-540-EIB5...................  Poeschel.........  P-300.
IO-540-GIA5...................  Doyn Aircraft....  Doyn-Piper PA-23-250.
IO-540-GIA5...................  Riley Aircraft...  Turbo-Aztec.
IO-540-GIA5...................  DeHavilland......  Heron Conversion.
IO-540-GIB5...................  T.R. Smith         Aerostar 600.
                                 Aircraft.
IO-540-GIB5...................  Found Bros.......  Centennial 100.
IO-540-G1C5...................  Intermountain      Call Air 1AR821.
                                 Mfg. Co.
IO-540-G1DS...................  Intermountain      IAR-822, IAR-826, IAR-
                                 Mfg. Co.           823.
IO-540-G1F5...................  Bellanca Aircraft
IO-540-N lA5..................  Piper Aircraft...  Comanche 260.
IO-540-T4A5D..................  General Aviation.  Model 114.
IO-540-T4B5...................  Commander........  1 14B.
IO-540-T4B5D..................  Rockwell.........  114.
IO-540-T4C5D..................  Lake Aircraft....  Seawolf.
IO-540-WIA5...................  Maule............  MX-7-235, MT-7-235,
                                                    M7235.
IO-540-W1A5D..................  Maule............  Star Rocket MX-7-235.
IO-540-W1A5D..................  Maule............  Super Rocket M-6-235.
IO-540-W1A5D..................  Maule............  Super Std. Rocket M-7-
                                                    235.
IO-540-W3A5D..................  Schweizer........  Power Glider.
IO-540-AB1A5..................  Cessna Aircraft..  Skylane C-182.
AEIO-540-D4A5.................  Christen.........  Pitts S-2S, S-2B.
AEIO-540-D4A5.................  Siai-Marchetti...  SF-260.
AEIO-540-D4A5.................  H.A.L............  HPT-32.
AEIO-540-D4A5.................  Slingsby.........  Firefly T3A
AEIO-540-D4B5.................  Moravan..........  Zlin-50L
AEIO-540-D4B5.................  H.A.L............  HPT-32.
AEIO-540-D4D5.................  Burkhart Grob....  Grob G, 1 15T Aero.
------------------------------------------------------------------------

    These engine models are known to be installed in the aircraft 
models listed in the following Table 5:

       Table 5.--Superior Air Parts, Inc.-Related Aircraft Models
------------------------------------------------------------------------
                                       Aircraft         Aircraft model
          Engine model               manufacturer         designation
------------------------------------------------------------------------
O-360-A3A2......................  American Champion.  7GCBC & 7GCAA
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD results from the discovery of nine separated SAP 
cylinder assemblies installed in TCM 470, 520, and 550 series 
reciprocating engines and one separated SAP cylinder assembly 
installed in LE 320, 360, and 540 series reciprocating engines. We 
are issuing this AD to prevent cylinder separation that can lead to 
engine failure, a possible engine compartment fire, and damage to 
the airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified unless the 
actions have already been done.

Determining Which Cast Cylinder Assemblies Are Installed

    (f) If aircraft engine records do not list the P/N of the 
cylinder installed during engine overhaul or repair, visually 
inspect the cylinders. The affected SAP cylinder head flanges are 
marked: SA47000L-A1, SA47000L-A20P, SA47000S-A1, SA47000S-A20P, 
SA47000S-A21P, SA52000-A1, SA52000-A20P, SA52000-A21P, SA52000-A22P, 
SA52000-A23P, SA55000-A1, or SA55000-A20P or SL32000W-A1, SL32000W-
A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-A20P, SL32006W-A1, 
SL32006W-A20P, SL32006W-A21P, SL36000TW-A1, SL36000TW-A20P, 
SL36000TW-A21P, SL36000TW-A22P, SL36000W-A1, SL36000W-A20P, 
SL36000W-A21P, SL36006W-A1, SL36006W-A20P, or SL36006W-A21P.

Cylinder Assembly Removal

    (g) Remove all cylinder assemblies with a serial number of 
47LE053559 through 47LF053643, or 47SE054212 through 47SF054251, or 
52D0531708 through 52H0532197, or 55E05223 through 55G05289, or 
32WE059006 through

[[Page 8099]]

32WF059067, or 32WHE05379 through 32WHE05392, or 326WF055517 through 
326WF055532, or 36TWF05430 through 36TWG05453, or 36WF058058 through 
36WJ058182, or 366WE056944 through 366WL058131 no later than 150 
hours total time-in-service (TIS) to preclude cylinder head fatigue 
failure and separation at the head-to-barrel threaded interface.
    (h) For cylinder assemblies with more than 150 hours total TIS 
on the effective date of this AD, a 10 hour TIS extension is 
permitted for the purpose of flying the aircraft to a location where 
maintenance action can be done to meet the requirements of this AD.
    (i) After the effective date of this AD, do not install any 
cylinder assemblies with P/Ns SA47000L-A1, SA47000L-A20P, SA47000S-
A1, SA47000S-A20P, SA47000S-A21P, SA52000-A1, SA52000-A20P, SA52000-
A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, or SA55000-A20P,or 
SL32000W-A1, SL32000W-A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-
A20P, SL32006W-A1, SL32006W-A20P, SL32006W-A21P, SL36000TW-A1, 
SL36000TW-A20P, SL36000TW-A21P, SL36000TW-A22P, SL36000W-A1, 
SL36000W-A20P, SL36000W-A21P, SL36006W-A1, SL36006W-A20P, or 
SL36006W-A21P, with a serial number of 47LE053559 through 
47LF053643, or 47SE054212 through 47SF054251, or 52D0531708 through 
52H0532197, or 55E05223 through 55G05289, or 32WE059006 through 
32WF059067, or 32WHE05379 through 32WHE05392, or 326WF055517 through 
326WF055532, or 36TWF05430 through 36TWG05453, or 36WF058058 through 
36WJ058182, or 366WE056944 through 366WL058131 into any engine.

Alternative Methods of Compliance

    (j) The Manager, Special Certification Office, FAA, Rotorcraft 
Directorate, has the authority to approve alternative methods of 
compliance for this AD if requested using the procedures found in 14 
CFR 39.19.

Special Flight Permits

    (k) For aircraft with engines that have between 140 hours and 
150 hours TIS only, special flight permits may be issued in 
accordance with Sec. Sec.  21.197 and 21.199 of the Federal Aviation 
Regulations (14 CFR 21.197 and 21.199) to operate the aircraft to a 
location where the requirements of this AD can be done. Special 
flight permits may not be issued for aircraft that have utilized the 
provisions of paragraph (h) of this AD.

Related Information

    (l) Superior Air Parts, Inc. Mandatory Service Bulletin B06-01, 
Rev. E, dated January 24, 2007, contains information related to the 
subject of this AD.
    (m) Contact Jurgen Priester, Aerospace Engineer, Special 
Certification Office, FAA, Rotorcraft Directorate, Southwest 
Regional Headquarters, 2601 Meacham Blvd., Fort Worth, Texas 76137; 
e-mail: <a href="/cdn-cgi/l/email-protection#fe948b8c999b90d08e8c979b8d8a9b8cbe989f9fd0999188"><span class="__cf_email__" data-cfemail="f8928d8a9f9d96d6888a919d8b8c9d8ab89e9999d69f978e">[email protected]</span></a>; telephone (817) 222-5159; fax (817) 
222-5785 for more information about this AD.

Material Incorporated by Reference

    (n) None..

    Issued in Burlington, Massachusetts, on February 13, 2007.
Peter A. White,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E7-2985 Filed 2-22-07; 8:45 am]
BILLING CODE 4910-13-P


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