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Amdt. X --- DAT XX

NOTE : This SB must be applied on the 3 actuators.

REFERENCE : MOD70 ---0334 ---32

SUBJECT : SECURITY OF LANDING GEAR ACTUATOR ROD/PISTON

EFFECTIVITY : TBM aircraft S/N 1 to 9999 which actuator P/Ns are included in following list :

T700A3230050000, T700A323005000000, T700A323005300000.

REASON :

A. PROBLEM

Possible unscrewing of rod and piston during operation on the actuator, which could

cause a breaking of the actuator under adverse flight conditions on landing.

B. REASON

Maintenance operation not conforming with the procedure described in Maintenance

Manual and deterioration of actuator rod and piston assembly.

C. SOLUTION

Inspection of the fleet and reconditioning if necessary.

DESCRIPTION: Measurement of the play between actuator rod jam nut and rod end shoulder.

COMPLIANCE : During next scheduled inspection and at the latest on April 30, 2014.

WARRANTY : For aircraft under warranty, manpower necessary for inspection is taken under warranty,

within granted time limit, until May 31, 2014.

PROCURABLE MATERIAL :

--- None

CONSUMABLE MATERIAL (Local purchase) :

--- None

TOOLING :

--- Standard aeronautical maintenance station tools

--- Set of shims

MANPOWER :

--- Inspection : 1 aeronautical mechanic : 10 min.

SERVICE BULLETIN

TBM AIRCRAFT

MANDATORY

The technical content of this document is approved

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

is the subject of an AD

SB 70 -- 197

AMENDMENT 1

32

ATA No.

SOCATA

Direction des Services TELEPHONE : 33 (0)5 62.41.73.00

65921 TARBES CEDEX 9 TELEFAX : 33 (0)5 62.41.76.54

FRANCE
SERVICE BULLETIN

TBM AIRCRAFT

MANDATORY

The technical content of this document is approved

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

is the subject of an AD

SB 70 -- 197

AMENDMENT 1

32

ATA No.

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Amdt. X --- DAT XX

TECHNICAL INCIDENCES :

--- None

ACCOMPLISHMENT INSTRUCTIONS :

NOTE :

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

their Airworthiness Authorities and according to the procedure described hereafter.

NOTE :

This SB must be applied on the 3 actuators.

A. MEASUREMENT OF “A” DIMENSION --- see Figure 1

1) Make sure the ”SOURCE” selector is set to ”OFF”.

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

WARNING

DO NOT OPERATE

MAINTENANCE WORK IN PROGRESS

3) Measure jam nut (2) thickness and fill in recording table.

4) With a set of shims, measure “A” dimension and fill in recording table.

Jam nut 0.236 in (6 mm) thick

5) If “A” dimension is equal to or greater than 0.236 in (6 mm), the installation is correct,

no corrective action is needed.

6) If “A” dimension is smaller than 0.236 in (6 mm), do the following operations :

a) Remove landing gear actuator (1) --- refer to Chapter 32 ---30 ---01 (Main landing

gear) or 32 ---30 ---02 (Nose landing gear) of the Maintenance Manual.

b) Contact DAHER ---SOCATA at one of the addresses hereafter

Jam nut 0.315 in (8 mm) thick

5) If “A” dimension is equal to or greater than 0.157 in (4 mm), the installation is correct,

no corrective action is needed.

6) If “A” dimension is smaller than 0.157 in (4 mm), do the following operations :

a) Remove landing gear actuator (1) --- refer to Chapter 32 ---30 ---01 (Main landing

gear) or 32 ---30 ---02 (Nose landing gear) of the Maintenance Manual.

b) Contact DAHER ---SOCATA at one of the addresses hereafter

All aircraft which actuator(s) has(have) been removed

7) Install new actuator P/N VSTS 083550 or VSTS 083560 --- refer to Chapter 32 ---30 ---01

(Main landing gear) or 32 ---30 ---02 (Nose landing gear) of the Maintenance Manual.
SERVICE BULLETIN

TBM AIRCRAFT

MANDATORY

The technical content of this document is approved

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

is the subject of an AD

SB 70 -- 197

AMENDMENT 1

32

ATA No.

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Amdt. X --- DAT XX

8) Send recording tables to DAHER ---SOCATA

DAHER SOCATA --- Direction des Services

Aéroport Tarbes ---Lourdes ---Pyrénées

65921 TARBES Cedex 9

FRANCE

Phone : +33 (0)5 62 41 76 59

Fax : +33 (0)5 62 41 76 54

e ---mail : r.arriulou@socata.daher.com

or for the Americas :

SOCATA NORTH AMERICA

North Perry Airport

7501 South Airport Rd.

Pembroke Pines, FL 33023

USA

Phone : +1 (954) 893 1418 or 1419

Fax : +1 (954) 964 7092

e ---mail : m.kim@socata.daher.com

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

from debris.

10) Remove the warning sign prohibiting ”SOURCE” selector operation.

B. RECORDING TABLE

Actuator

position on A/C

Actuator

S/N

Jam nut

thickness “A” dimension

Front 0.236 in (6 mm)

0.315 in (8 mm)

R.H. 0.236 in (6 mm)

0.315 in (8 mm)

L.H. 0.236 in (6 mm)

0.315 in (8 mm)

UPDATING OF THE AIRCRAFT DOCUMENTATION :

Upon completion of Service Bulletin No. SB 70 ---197 ---32 (Reference MOD70 ---0334 ---32)

”SECURITY OF LANDING GEAR ACTUATOR ROD/PISTON”, make an appropriate

maintenance record entry.

NOTE :

If installation of the three actuators is correct, reference to modification

No. MOD70 ---0334 ---32 must not be entered in aircraft logbook.

Insert in the maintenance record, recording table hereabove and, if one or more actuator(s)

has(have) been replaced, indicate the position on which the modification has been applied.
SERVICE BULLETIN

TBM AIRCRAFT

MANDATORY

The technical content of this document is approved

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

is the subject of an AD

SB 70 -- 197

AMENDMENT 1

32

ATA No.

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Amdt. X --- DAT XX

WARNING : 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.
SERVICE BULLETIN

TBM AIRCRAFT

MANDATORY

The technical content of this document is approved

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

is the subject of an AD

SB 70 -- 197

AMENDMENT 1

32

ATA No.

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Figure 1 --- Measurement of “A” dimension

1 --- Landing gear actuator

2 --- Jam nut

3 --- Rod end