I 

I 

l: DAHER-SOCATA 

SOCATA 

Direction des Services 

65921 TARBES CEDEX 9 

FRANCE 

TELEPHONE: 33 (0)5 62.41.73.00 

TELEFAX: 33 (0)5 62.41.76.54 

TBM AIRCRAFT I I 5870-194 32 SERVICE BULLETIN AMENDMENT 2 ATA No. 

MANDATORY 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

ALERT 

FOR LANDING GEARS ON WHICH THE BOLT HAS ALREADY BEEN REPLACED DURING 

APPLICATION OF ORIGINAL SB, JUST ADD A VARNISH LINE. 

SUBJECT 

EFFECTIVITY 

REASON 

NOSE LANDING GEAR ACTUATOR AXLE ATIACHING BOLT 

Landing gear installed on aircraft from S/N 1 to 593, which S/N is included in the list below : 

PART NUMBER D23766000 or D23766000-X : 

- S/N from B001 to B373 inclusive and B375, 

- S/N from AR1000 to AR1023, AR1025 to AR1031 and AR1033 to AR1036 inclusive, 

- S/N from AABOOOOO to AAB 13766 and AABOOOOOA to AAB 13766Z inclusive, 

- S/N EURXXX. 

PART NUMBER 21130 000 XV or 21130-001-XV : 

- All S/N 

A. PROBLEM 

Breaking of the bolt attaching actuator hinge axle on nose landing gear which could 

cause partial disengagement of this axle and landing gear collapse. 

B. REASON 

Installation of a bolt bearing wrong part number during general overhaul. 

C. SOLUTION 

Addition of an operational procedure before each flight, until landing gear return to 

conformity through bolt replacement. 

Landing gear return to conformity through bolt replacement. 

REASON OF AMENDMENT 1 : 

Not applicable. 

REASON OF AMENDMENT 2 : 

Modification of paragraphs Effectivity, Reason (C. Solution), Compliance, Warranty, 

Consumable Material and Accomplishment Instructions. 

Addition of a varnish line identifying the application of this SB. 

SEP 11 Page 1 I 8 

Arndt. 2 - NOV 11 
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I SERVICE BULLETIN 

TBM AIRCRAFT I MANDATORY 

SB 70-194 32 

AMENDMENT 2 ATA No. 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

SUMMARY 

A. OPERATIONAL PROCEDURE 

B. PREPARATION 

C. BOLT REPLACEMENT 

D. RECONDITIONING 

COMPLIANCE : 

WARRANTY 

SEP 11 

Perform the operations in accordance with the flowchart hereunder : 

BEFORE NEXT FLIGHT : 

YES DOES LANDING GEAR S/N NO 

BELONG TO THE LIST PROVIDED 

IN "EFFECTIVITY" PARAGRAPH ? 

NO ( DOES WASHER (14) I YES SB DOES NOT l ROTATE? I CONCERN THIS 

LANDING GEAR 

.. 

p 

THE FLIGHT CAN BE DONE I THE FLIGHT CANNOT BE DONE I 

BEFORE NEXT FLIGHT : YES I REPLACE BOLT (3) (REFER TO I 

DOES WASHER {14) PARAGRAPHS B., C. AND D.) 

ROTATE? 

NO 

THE FLIGHT CAN BE DONE I 

~ 

REPLACE BOLT (3) (REFER TO 

PARAGRAPHS 8., C. AND D.) 

DURING NEXT SCHEDULED 

INSPECTION AND AT THE LATEST 

BEFORE SEPTEMBER 30,2012 

Parts and manpower under warranty within the granted time limit until September 30, 2012. 

The transfer of a stored landing gear to a repair station for application of SB is also taken 

under warranty. 

Page 2 I 8 

Arndt. 2 - NOV 11 
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TBM AIRCRAFT 

I I SB 70-194 32 SERVICE BULLETIN AMENDMENT 2 ATANo. 

MANDATORY 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

PROCURABLE MATERIAL : 

- Parts to be ordered from your TBM spare parts distributor. 

Item Part number Description Oty/aircraft 

3 5101301111 Bolt AN4-11A 1 

CONSUMABLE MATERIAL (Local purchase) : 

- Molykote DX or Mastinox (MIL- P- 8116D) or equivalent 

- Sealant PR 1826 82 ALO "LE JOINT FRANCAIS" 

- M.E.K. (Methyl- Ethyl- Ketone) or equivalent 

- Green protection varnish 13188 AKZO NOBEL AEROSPACE or equivalent 

TOOLING 

- Standard aeronautical maintenance station tools 

- Torque wrench 0 to 400 lbf.in (0 to 50 N.m) 

- Castellated socket T700A3299000009 or equivalent 

MANPOWER : 

- 1 aeronautical mechanic: 1 hour (Application ofthe SB during a scheduled inspection). 

TECHNICAL INCIDENCES : 

- None 

ACCOMPLISHMENT INSTRUCTIONS : 

SEP 11 

NOTE: 

Operations required in this Service Bulletin must be accomplished by persons authorized by 

their Airworthiness Authorities and according to the procedure described hereafter. 

A. OPERATIONAL PROCEDURE - see Figures 1, 2 and 3 

CAUTION 

IT IS MANDATORY TO INFORM ANY PERSON WHO MIGHT FLY THE AIRCRAFT 

ABOUT THIS OPERATIONAL PROCEDURE. THIS PROCEDURE MUST BE APPLIED 

BEFORE NEXT FLIGHT. 

1) Note the landing gear Serial Number marked on placard (1 6) 

a) If the landing gear Serial Number is not included in the list given in paragraph 

Effectivity, this SB does not concern landing gear. 

b) If the landing gear Serial Number is included in the list given in paragraph 

Effectivity, make sure that washer (14) does not rotate freely. 

2) Make sure that washer (1 4) located on nose landing gear does not rotate freely : 

a) If the washer does not rotate, the flight can be done. 

b) Before each next flight, and until replacement of bolt (3), make sure washer (14) 

does not rotate to be able to do the flight. 

c) If the washer rotates, no flight can be done until bolt (3) is replaced - see 

Paragraphs B., C. and D. 

Page 3 I 8 

Arndt. 2- NOV 11 
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TBM AIRCRAFT I 58 70-194 32 SERVICE BULLETIN AMENDMENT 2 ATA No. 

SEP 11 

MANDATORY 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

3) Insert this Service Bulletin into the Pilot's Operating Handbook. 

B. PREPARATION 

1) Set "SOURCE" selector to "OFF". 

2) Install the warning sign prohibiting "SOURCE" selector operation 

WARNING 

DO NOT OPERATE 

MAINTENANCE WORK IN PROGRESS 

3) Jack up the aircraft - refer to Chapter 07-10-00 of the Maintenance Manual. 

4) Remove nose gear R.H. door 142- refer to Chapter 52-80- 02 of the Maintenance 

Manual. 

C. BOLT REPLACEMENT - see Figures 2 and 3 

1) Unlock and remove slotted nut (11), remove and retain lock'A'asher (12) and 

washer (13). 

2) Remove sealant (2) bead. 

3) Remove bolt (3), washer (15), discard bolt (3). 

NOTE: 

If bolt is broken, take pictures and contact DAHER-SOCATA, 

4) Install washer (15). 

5) Apply a film of Molykote DX paste on new bolt (3) P/N 51013011 11. 

6) Install bolt (3). 

7) Tighten to a torque between 45 and 57 lbf.in (5 and 6.5 N.m). 

8) With M.E.K., degrease the area around the bolt (3) head. 

9) Apply a bead of sealant (2) PR 1 826 B2 ALO all around the bolt (3) head. 

1 0) Make sure the lockwasher (12) is in good condition, replace it if necessary. 

11) lnstalllockwasher (12) and washer (13). 

12) Install slotted nut (11). With the castellated socket P/N T700A3299000009, tighten to 

a torque between 310 and 398 1bf.in (35 and 45 N.m). 

13) Secure taking care to fold an unused lug of the lockwasher (12). 

14) Identify the landing gear with a green varnish line (4), minimum length 1/2in. (13 mm) 

and minimum width 1/4 in. (7 mm). 

Page 4 I 8 

Arndt. 2 - NOV 11 
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TBM AIRCRAFT 

SERVICE BULLETIN I I SB 70- 194 32 

AMENDMENT 2 ATA No. 

MANDATORY 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

D. RECONDITIONING- see Figure 2 

1) Make sure all the tools and materials are removed and the work area is clean and free 

from debris. 

2) Install nose gear R.H. door 142 - refer to Chapter 52-80-02 of the Maintenance 

Manual. 

3) Lower the aircraft to ground and remove the jack - refer to Chapter 07- 10-00 of the 

Maintenance Manual. 

4) Remove this Service Bulletin from the Pilot's Operating Handbook. 

UPDATING OF THE AIRCRAFT DOCUMENTATION : 

WARNING 

SEP 11 

Amdt. 2- NOV 11 

Upon completion of Service Bulletin No. SB 70-194- 32, Amendment 2, "NOSE LANDING 

GEAR ACTUATOR AXLE ATTACHING BOLT", make an appropriate maintenance record 

entry. 

SOCATA considers that it is MANDATORY for operators to comply with the instructions of 

this SB. 

Operators who arbitrarily ignore the compliance statement indicated in this SB do so at their 

own risk. 

Page 5 I 8 
I SERVICE BULLETIN I TBM AIRCRAFT 

AMENDMENT 2 ATA No. 

SB 70-194 32 

MANDATORY 

A 

• 

SEP 11 

Amdt. 2 - NOV 11 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

14- Washer 

Figure 1 - Operational procedure 

Page 6 / 8 
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I SERVICE BULLETIN 

TBM AIRCRAFT 

I SB 70-194 32 

AMENDMENT 2 ATANo. 

MANDATORY 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

1 - Axle 

2- Sealant 

3- Bolt 

4 - Varnish line 

4 

Figure 2 - Removal/Installation of sealant bead 

SEP 11 Page 7 I 8 

Arndt. 2 - NOV 11 
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AMENDMENT 2 ATA No. 

58 70-194 32 

MANDATORY 

!be 11 !; 

13 

14 

SEP 11 

Arndt. 2- NOV 11 

The technical content of this document is approved 

under the authority of DOA No. EASA.21J.013 

is the subject of an AD 

1 - Axle 

Figure 3 - Bolt replacement 

3- Bolt 

11 - Slotted nut 

12 - Lockwasher 

13- Washer 

14- Washer 

15 - Washer 

16- Placard 

16 

Page 8 I 8