SB-GA200-2012-08

Issue 1

MANDATORY

PO Box 881, Morwell, Victoria 3840, Australia

Ph + 61 (0) 3 5172 1200

Fax + 61 (0) 3 5172 1201

www.gippsaero.com

Service Bulletin

SB-GA200-2012-08 Issue: 1 Date of Issue: 22/8/2012 Page 1 of 4

Subject:

Replacement of wing strut mounting bolts.

Applicability:

All GA200 & GA200C aircraft.

Amendments:

Nil (initial issue).

Background:

As a result of a reported case of failure of the strut bolt through the main spar on a GA200C

aircraft, GippsAero has issued this Service Bulletin to alert operators and maintenance

organisations and to provide inspection and rectification actions.

Compliance:

This Service Bulletin is to be carried out within the next 10 flight hours then every periodic

inspection thereafter.

Applicable Documents:

GA200 or GA200C Service Manual as applicable

GA200 Illustrated Parts Catalogue

AC43.13-1B

Method:

Carry out an in-situ inspection of the port and starboard strut fittings and take appropriate 

corrective action as follows, refer Service Manual Chapter 57:

1. Remove the main strut/wing fairing assembly and strut/fuselage fairing assembly (if 

fitted).

2. Support the wing as required. Remove and inspect all three strut attachment bolts in 

turn.

3. Diameters for each fitting should be as specified below:

a. 570006-19 inboard (upper) strut fitting – 0.500 to 0.510 inches
SB-GA200-2012-08

Issue 1

MANDATORY

PO Box 881, Morwell, Victoria 3840, Australia

Ph + 61 (0) 3 5172 1200

Fax + 61 (0) 3 5172 1201

www.gippsaero.com

Service Bulletin

SB-GA200-2012-08 Issue: 1 Date of Issue: 22/8/2012 Page 2 of 4

b. 570006-17 strut fitting main spar – 0.375 to 0.385 inches

c. 570006-15 strut fitting rear spar – 0.750 to 0.760 inches

d. 570006-13 eccentric bush rear spar – 0.375 to 0.385 inches

4. If hole size is correct, skip to Step 9 otherwise proceed to Step 5

5. If the inboard (upper) strut fitting hole diameter is larger than specified in step 3, 

notify GippsAero for corrective action.

6. If the main spar hole diameter is larger than specified in step 3, ream the main spar 

strut fitting holes on the strut and the wing spar to a diameter of 0.438 to 0.440 

inches.

NOTE

Care is to be taken when reaming to ensure reamer does not damage

surrounding structure.

7. If the hole diameter for the 570006-13 eccentric bush is larger than specified in step 

3, replace the bush with a new 570006-13 bush.

8. If the rear spar strut hole diameter is larger than specified in step 3, notify GippsAero 

for corrective action.

9. Re-attach strut to wing in accordance with the Service Manual, section 57-10-10. The 

following hardware is to be used in lieu of the original fit:

a. Replace AN8-23A bolt with NAS6608-29 bolt

b. Replace AN6-23A bolt with NAS6606-31 bolt, or

c. Replace AN6-23A bolt with NAS6607-31 bolt if hole has been reamed oversize

d. Replace AN6-15A bolt with NAS6606-21 bolt

e. Use MS21042-6 nut and MS27151-19 Pal Nut

f. Use AN365-720 nut and MS27151-21 Pal Nut

g. Use AN365-820 nut and MS27151-24 Pal Nut

h. Use AN960- washers as required.

10. Reassemble using Duralac (barium chromate) mating compound to all attaching 

hardware. Torque in accordance with Chapter 20, Table 1.

Should you require any further information please contact our Customer Support 

Department:

Tel.: +61 (0) 3 5172 1200

Fax: +61 (0) 3 5172 1201

Email: support@gippsaero.com
SB-GA200-2012-08

Issue 1

MANDATORY

PO Box 881, Morwell, Victoria 3840, Australia

Ph + 61 (0) 3 5172 1200

Fax + 61 (0) 3 5172 1201

www.gippsaero.com

Service Bulletin

SB-GA200-2012-08 Issue: 1 Date of Issue: 22/8/2012 Page 3 of 4

 

Strut Fairings

Inboard strut attachment bolt, rear spar bolt & main spar bolt

Strut/Wing Fairing

Strut/Fuselage 

Fairing

Main spar bolt

Rear spar bolt

Inboard strut attach. bolt
SB-GA200-2012-08

Issue 1

MANDATORY

PO Box 881, Morwell, Victoria 3840, Australia

Ph + 61 (0) 3 5172 1200

Fax + 61 (0) 3 5172 1201

www.gippsaero.com

Service Bulletin

SB-GA200-2012-08 Issue: 1 Date of Issue: 22/8/2012 Page 4 of 4

570006-19

570006-17

570006-13

570006-15

Main Strut Attachment Rear Strut Attachment

Inboard (upper) Strut Attachment