Page 2 of 20 SB-328J-52-213R1 

Manpower 

Access/Prep.: 4.0 Mhrs. 

Modification: 25.0 Mhrs. 

Close-up: 4.0 Mhrs. 

Functional checks: 4.0 Mhrs. 

Total: 37.0 Mhrs. 

Material 

According to Material Parts List 

Special Tools 

Dynamometer GSE GM.4.07 

Manometer GSE GE.4.14 

Mounting Tool GSE 52.5.04 

Multimeter GSE GE.4.01 

Pax Door trolley GSE 52.5.05 (or suitable alternative work platform) 

Rigging Pin GSE 52.5.02 

Drilling Jig C2221001A521R0501000 (tool item 1) 

Locator C2221001A521R0501000 (tool items 2 & 3) 

Bush C2221001A521R0501000 (tool items 4 & 5) 

Weight and Balance 

The weight and balance data must be incorporated into the Basic Weight and Balance 

Record. 

Change of weight: 1.5 kg (3.3 lb.) 

Change of moment: 8.4 kgm (moment/1000: 0.7 lb in) 

Electrical Load Data 

Not affected. 

References 

Not affected. 

Other Publications Affected 

AIPC X 

AMM X 

Reporting 

Compliance of this Service Bulletin must be reported to 328 Support Services GmbH 

Customer Services Department using the Compliance Report for Configuration Control. 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 3 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

2. ACCOMPLISHMENT INSTRUCTIONS 

A Preparation 

CAUTION: Obey the Safety Precautions and the General Maintenance Practices 

according to the AMM JIC Chapter 00. 

Note: Obey the following SRM Chapters. 

 51-00-00. Standard Practices Structures General 

 51-21-00. Cleaning Processes 

 51-22-00. Sealing 

 51-40-10. Drill & Hole Data 

 51-40-20. Countersinking 

 51-41-20. Rivet installation and removal-Metal Structure 

 51-41-30. Rivet installation and removal-Non-Metal Structure 

 51-43-20. Bolts, Screws and Nuts Installation and Removal 

 51-70-00. Repairs 

 51-74-20. Corrosion Preventative Treatment 

 51-90-00. Surface Protection 

(1) Make the aircraft safe for maintenance according to AMM JIC 00-30-01. 

(2) Do a measurement check of the pax door according to AMM JIC 52-10-00-820-

801. Record the gaps around the door at the stop positions. 

(3) Remove the LH partition wall at Fr. 14 (if installed), retain fixings. 

(4) Remove the lining around the pax door according to AMM JIC 25-22-00-020-

801. 

(5) Remove the passenger entrance stairs (c/w with pax door) according to AMM 

JIC 52-12-00-020-801. Place the stairs onto a suitable work platform. 

(6) Remove and retain the front and rear handrails, struts and associated 

attachments from the stairs according to AMM JIC 52-12-20-020-801. 
Page 4 of 20 SB-328J-52-213R1 

B Modification 

1. Door Sill

(1) At the bottom sill of the door entrance, remove and discard the guide brackets 

P/N 001A532B4030 (fwd and rear Stn X5208.0 - X5728), refer to Fig. 10. 

(2) Clean off all the sealant from the bracket attachment area on the floor surface. Fill 

the redundant holes with sealant PR1436 (item 40), refer to Fig. 10. 

2. Front Hinge Support (item 2) Figs.2 & 5:

(1) Loosen the qty. 14 attachment bolts and remove the front hinge support P/N 

001A521B0501-004 from the passenger stairs. Retain the lower grounding strap 

and attachments, discard all the other attachment bolts (qty. 13), (refer to Fig. 2). 

(2) Remove and retain the stop assy P/N 001A521B0503-206 from the front hinge 

support (refer to Fig. 2). 

Note: Do not remove 'guide' P/N 001A521B0527-204 from the hinge support, as 

this hole is not to be transferred into the new hinge support (see Fig. 2). 

(3) Clean off all the sealant from the back surface of the removed front hinge support, 

around the holes edges and from the mating surface on the stairs. 

(4) Put the front hinge support onto the blank drilling jig (tooling item 1), align using 

the two locators (tooling items 2 and 3) at each of the ends. Make sure that the 

hinge support is sitting flat onto the template, clamp together. 

(5) Mark the contour of the front hinge support with indelible marker pen or similar. 

(6) Using drill bushes (tooling items 4 & 5) at pilot size 2.46mm/0.097 in. dia., transfer 

drill the qty. 14 attachment holes from the front hinge support into the drilling jig; 

refer to Figs. 2 & 4. 

Note: Use the conical bush (tooling item 4, Fig. 4) to transfer the hole close to 

the flange, for all other holes use the flat bush (tooling item 5). 

(7) Transfer drill the one 6.5mm/0.255 in. dia hole into the drilling jig, refer to Fig. 2. 

(8) Remove the old front hinge support from the drilling jig (tooling item 1). 

(9) De-burr holes in the jig. Identify this part of the drilling jig (tooling item 1) as 

‘Front’; refer to Fig. 4). 

CAUTION: The drilling jig will be double sided, to be used for front and rear 

hinge support attachment holes. Take extra care to identify the hole 

drilled in the jig at the 'Centre Crossing' as 'Front' (see Fig. 4). 

(10) Put the new front hinge support (item 2) onto the 'Front' side of the drilling jig 

(tooling item 1), align using the locators (tooling items 2 & 3) at each of the ends. 

Make sure that the hinge support is sitting flat onto the jig and clamp together. 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 5 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

Note: Do not damage the surface, use protection on clamps. 

(11) Secure the locators (tooling items 2 & 3) to the jig (tooling item 1) using tape to 

avoid falling out of position once the jig is overturned to transfer drill the holes. 

(12) Transfer drill the qty. 14 attachment holes from the backside of the drilling jig to 

the new front hinge support, using a piloted drill bit and a bench drilling machine 

i.e. not by hand. Open up the qty. 14 attachment holes from 2.46 to 3,26mm dia. 

(0.097 to 0.128 in.), from the backside of the drilling jig (tooling item 1). 

Note: When drilling, use a suitable packing under the tapered end of the hinge 

support, to ensure the hinge support remains flat and level. 

(13) Transfer drill the one 6.5mm/0.255 in. dia hole into the new front hinge support, 

refer to Fig. 2. 

(14) Remove the new front hinge support from the drilling jig (tooling item 1). Tape 

over the drilled holes on the backside of the jig in order to avoid confusion when 

drilling the new rear hinge support 

(15) Using a piloted drill bit and a bench drilling machine i.e. not by hand, open up 

the qty. 14 attachment holes in the new front hinge support, from 3.26 to 

4,75mm dia. (0.128 to 0.187 in.). 

(16) Using a bench drilling machine i.e. not by hand, ream the qty. 14 attachment 

holes in the front hinge support to final size 4,83mm H7/0.190 in dia. 

(17) De-burr all holes. 

(18) Perform a temporary trial fit of the new front hinge support onto the stairs. 

Note: If necessary, it is permitted to drill any two of the holes to a final size of 

4.90mm H7/0.193 in. 

3. Rear Hinge Support (item 1) Fig. 7:

(1) Loosen the attaching fasteners securing the conduit (with plug 14VP) to the rear 

hinge support. Retain the fasteners, conduit remains attached with the stairs. 
Page 6 of 20 SB-328J-52-213R1 

(2) Loosen the qty. 14 attachment bolts and remove the rear hinge support P/N 

001A521B0503-208 from the passenger stairs. Retain the lower grounding strap 

and attachments, discard all the other attachment bolts (qty. 13), (refer to Fig. 

7). 

(3) Remove the stop bracket P/N 001A521B0503-204 from the rear hinge support. 

Note: Do not remove 'guide' P/N 001A521B0527-204 from the hinge support, as 

this hole is not to be transferred into the new hinge support (see Fig. 2). 

(4) Clean off all the sealant from the back surface of the removed rear hinge 

support, around the hole edges and from the mating surface on the stairs. 

(5) Repeat the drilling operations para. 2.4) to 2.17) (item 2) for the Rear hinge 

support (item 1). 

CAUTION: The drilling jig is double sided to be used for the transfer of both 

front and rear support attachment holes. Take extra care to make 

sure that the correct hole is identified for each side at the 'Centre 

Crossing' as only ONE hole relates to each of the front and rear side 

of the template, (see Fig. 4). 

(6) Perform a temporary trial fit of the new rear hinge support onto the stairs. 

Note: If necessary, it is permitted to drill any two of the holes to a final size of 

4.90mm H7/0.193 in. 

4. Hinge Support Assemblies:

(1) Position the retained Stop Assy P/N 001A521B0503-206 onto the front hinge 

support (item 2). Clamp to the dimensions given; refer to Fig. 6 A2 – A2. 

(2) Transfer drill holes into the front hinge support from the stop assy, using drill 

bushes (tooling items 4 & 5 or other suitable bush as available) and in 3 

progressive stages: 1 – 2.46 to 3,26mm dia. 2 – 3.26 to 4.75mm dia. 3 – ream to 

final size 4.83 H7. Remove and de-burr holes. 

Note: A 90° drilling tool with a short length drill is required for the above 

operation. 

(3) Install the stop assy onto the front hinge support (item 2) using sealant (item 

40), attach with fasteners (items 9, 10, 13 & 24), and refer to Fig. 6 A2 - A2. 

(4) Position the new stop bracket (item 5) onto the new rear hinge support. Clamp 

to the dimensions given, refer to Fig. 8. 

(5) Transfer drill holes into the rear hinge support from the stop bracket in 3 

progressive stages: 1 – 2.46 to 3.26mm dia. 2 – 3.26 to 4,75mm dia. 3 – ream to 

final size 4.83 H7. Remove and de-burr holes. 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 7 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

Note: A 90° drilling tool with a short length drill is required for the above 

operation. 

(6) Install the stop bracket (item 5) onto the new rear hinge support (item 1) using 

sealant (item 40), attach with fasteners (items 9, 10 & 13), and refer to Fig. 8 C1 

- C1. 

Note: Install all fasteners using Mastinox item 42. 

(7) Install fasteners (items 17 & 13, 32 & 24) onto stop bracket (item 5) with (item 

42); refer to Fig. 8 C1 - C1. 

(8) Install the new front hinge support (item 2) onto the stairs using sealant (item 

40), attach with new fasteners (items 23 & 24, 3 plcs, Items 23a & 24, 10 plcs) 

using (item 42). 

(9) Attach the lower grounding strap using retained fastenings, refer to Fig. 2. 

(10) Install the new rear hinge support (item 1) onto the stairs using sealant (item 

40), attach with new fasteners (items 23 & 24, 3 plcs, Items 23a & 24, 10 plcs) 

using (item 42), refer to Fig. 7. 

(11) Attach the lower grounding strap using retained fasteners, refer to Fig. 7. 

(12) Position strap (item 7) with the two pre-drilled holes. Drill the two outstanding 

holes from the opposite side hinge assy, progressively to final sizes 5,0mm dia. 

CSK the two new holes in the plate, refer to Fig. 6 View on Arrow A2 Detail A3. 

(13) Install strap (item 7) and shims (item 8 and/or items 19 to 22) using sealant 

(item 40), attach at both ends to the hinge supports with fasteners (items 13 & 

15 using item 42) refer to Fig. 6 Detail X. 

(14) Attach electrical conduit at the one original position using fasteners as per Fig. 

8. 

(15) Attach electrical conduit at the 3 new positions using fasteners as per Fig. 8. 

5. Front and Rear Handrails/Struts:

(1) Disassemble the front handrail assy. Refer to AMM JIC 52-12-20-020-801. 
Page 8 of 20 SB-328J-52-213R1 

(2) Carefully rework the edges from the bottom attachment point of the handrail P/N 

001A521R0530 as per Fig. 6 sec. F2-F2. Make the surface flat and smooth to fit 

the new milled part (item 6). Restore protective treatment and paint finish. 

(3) Assemble the front handrail assy with new milled part (item 6) attached to new 

strut (item 4) using sealant (item 40) and fasteners items as per Fig. 6. 

(4) Remove the stop plate from the old front strut P/N 001A521B0544-000, retain 

fasteners (2 off) and discard the old strut (refer to Fig. 6 Detail Y2). 

(5) Install the stop plate onto the new front strut (item 4) using sealant (item 40) and 

retained fasteners (2 off), refer to Fig. 6 Detail Y2. 

(6) Disassemble the rear handrail assy. Drill out the attaching handrail/strut blind 

rivets. Refer to AMM JIC 52-12-20-020-801. 

(7) Remove the stop plate from the old rear strut P/N 001A521B0544-002, retain 

fasteners (2 off) and discard the old strut (similar to front strut, refer to Fig. 6). 

(8) Install the stop plate onto the new rear strut (item 3) using sealant (item 40) and 

retained fasteners (2 off). 

(9) Assemble the rear handrail assy with new strut (item 3). 

Note: Do not drill the (rotating) handrail/strut attachment holes at this stage; 

this must be done later when the assy is installed onto the aircraft. 

(10) Install the passenger entrance stairs onto the aircraft according to AMM JIC 52- 

12-00-420. 

(11) Drill the rear handrail/strut attachment points; refer to Figs. 7 & 8 W1-3, X1-3. 

(12) De-burr and restore protective treatment. 

(13) Attach the rear handrail to the rear strut using rivets (item 16), refer to Fig. 8. 

(14) Attach grounding straps (item 25) to the front and rear hinge supports with 

fasteners (items 28 - 31). Ensure there is a gap as per note, refer to Fig. 6. G2-

G2 (H2-H2). Attach the other end of the straps to the structure as found, using 

existing fasteners. 

(15) Overcoat grounding straps with sealant according to SRM. 

(16) Record the modification details onto the new identification plate (item 33a) and 

attach adjacent to the existing pax door identification plate, using protection 

(item 33b or 43): 

P/N 001A521R0010150, SB-328J-52-213, Date of Modification & Serial No 

C Close-up 

(1) Complete the installation of the passenger entrance stairs by installing the floor 

panel 221CZF and covers according to AMM JIC 52-12-00-420. 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 9 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

(2) Do the adjustment, alignment and calibration of the passenger door according 

to AMM JIC 52-10-00-820. Observe notes at Fig. 9. 

(3) Perform the proximity switch adjustment according to AMM JIC 52-71-00-820. 

(4) Do the Operational test of the door according to AMM JIC 52-71-00-710. 

(5) Do a fuselage leak test according to AMM JIC 53-00-00-750. 

(6) Install the lining around the pax door according to AMM JIC 25-22-00-420-801. 

(7) Install the LH partition wall at Fr. 14 (if previously installed), use retained fixings. 

(8) Perform a foreign object inspection in and around the modification area. 

(9) Close all opened doors and panels according to AMM JIC 06-40-02. 

(10) Return the aircraft to a serviceable condition. 

3.MATERIAL INFORMATION 

A Material Parts List 

 One SB Kit PN Number SB328J-52-213 is necessary to perform the SB on one 

A/C. 

 

 SB Kit PN Number SB328J-52-213 contains: 

Item No P/N Qty Nomenclature Remark 

1 001A521R0501000 1 Hinge Support - Rear 

2 001A521R0501002 1 Hinge Support - Front 

3 001A521R0547000 1 Strut - Rear 

4 001A521A0547008 1 Strut - Front 

5 001A521B0503216 1 Stop Bracket 

6 001A521B0525222 1 Milled Part 

7 001A521B0517208 1 Strap 
Page 10 of 20 SB-328J-52-213R1 

8 001A521B0517210 1 Shim/Liner 

9 NAS6803A5 4 Screw 

10 NAS6803A4 4 Screw 

11 NAS6703-15 2 Screw 

12 NAS1153E19 3 Screw 

13 NAS1726C3D 22 Nut 

14 001A521B0543204 3 Spacer 

15 NAS1153E11 4 Screw 

16 CR3522-5-3 6 Blind Rivets 

17 001A524A1132200 1 Bolt 

18 001A524A1133158 1 Shim 

19 001A521B0517212 1 Shim/Liner 

20 001A521B0517214 1 Shim/Liner 

21 001A521B0517216 1 Shim/Liner 

22 001A521B0517218 1 Shim/Liner 

23 NAS6703U1 6 Bolt 

23a NAS6703U2 20 Bolt 

24 NAS1587A3C 35 Washer 

25 LN9264-10X250 2 Grounding Strap 

26 NAS1149C0332R 2 Washer 

27 NAS6703U2 2 Bolt 

28 DOLN229-64120 2 Spacer 

29 NAS6704-10 2 Bolt 

30 NAS1726C4D 2 Nut 

31 AN960C416L 2 Washer 

32 NAS1802-3-9 1 Screw 

33a DON178A-1M 1 Identification Plate 

33b DON178Z 1 Protective Foil 

The following expendables to be provided by operator and/or ordered separately (not part of the Kit): 

34 MS24665-153 A/R Split Pin 

35 MS24665-300 A/R Split Pin 

36 MS24665-302 A/R Split Pin 

37 AN960XC616L A/R Washer 

38 001A521B0102208 A/R Shim 

39 LN9424-1.4546.9-0.5 A/R Locking Wire CML05-008 

The following consumables to be provided by operator and/or ordered separately in commercial 

quantity (not part of the Kit): 

40 PR1436/DOL259 A/R Sealant 

41 Loctite 243 A/R Compound CML08-013 

42 DOL 40 A/R Mastinox 6856H CML05-001 

43 DON 26 A/R Clear Varnish Paint CML07-006 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 11 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

Fig. 1 
Page 12 of 20 SB-328J-52-213R1 

Drilling Jig - Before (Undrilled) 

Fig. 3 

View on Arrow A 

Fig. 2 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 13 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

Drilling Jig - Before (Undrilled) 

Fig. 3 
Page 14 of 20 SB-328J-52-213R1 

Drilling Jig - After (Drilled) 

(Shown with both Hinge Supports) 

Fig. 4 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 15 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

View Looking Aft on Front Hinge Support 

(Handrails shown folded) 

Fig. 5 
Page 16 of 20 SB-328J-52-213R1 

Fig. 6 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 17 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

 

View Looking Fwd on Rear Hinge Support 

(Handrails shown folded) 

Fig. 7 

Note: Quantities Given in Figure 7 refer to one side only; same 

quantities apply for opposite side! 23,24(3plcs)

23a,24 (10plcs) 
Page 18 of 20 SB-328J-52-213R1 

Fig. 8 
SB

Dornier 328J

Service Bulletin 

Model Dornier 328J Rev. No. 1 No. SB-328J-52-213 

 Rev. Date. Aug 17, 2011 Date of Issue Feb 04, 2005 

 Page 19 of 20 

Customer Services · Global Support Center 

P. O. Box 1252 

D-82231 Wessling 

Germany 

Phone +49 (0) 8153 – 88111 6666 

Telefax +49 (0) 8153 – 88111 6565 

e-mail gsc.op@328support.de 

Note: Adjustment of stops for door open position: 

1. Shim the stop of the forward hingearm so that the hook to hold the 

airstair open can engage (see fig. above). 

2. Shim the stop on the aft hingearm, so that both stops (the aft and 

the forward stop) have contact with the door struts when unloaded. 

Fig. 9 
Page 20 of 20 SB-328J-52-213R1 

Bottom Sill of Door Entrance 

Fig. 10