PACIFICAEROSPACE 

Pacific Aerospace Umited 

Au·port Road, Hamilton 

Private Bag 3027, Hamilton 3240, New Zealand 

TEL +64 7 B43 6144 FAX +64 7 843 6134 

EMAIL pacific@aerospace.co.nz 

WEB www.aerospace.co.nz 

MANDATORY SERVICE 

PACSB I XL I 068 

ISSUE 3 

FIN FORWARD PICKUP 

B 

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L 

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1. PLANNING INFORMATION 

A EFFECTIVITY 

B. REASON 

C. DESCRIPTION 

D. COMPLIANCE 

E. TOOLING 

F. WEIGHT AND BALANCE 

G. REFERENCE 

H. HOURS REQUIRED 

Page 1 of 4 

1) All PAL 750XL aircraft with greater than 2000 

Hours TIS, and; 

2) All PAL 750XL aircraft that are, or have been 

operated in the agricultural role with greater 

than 1000 Hours TIS. 

There have been reported instances of cracking in 

the aft plate of the forward Fin Pickup Lug located at 

fuselage STN 337.00 on 750XL aircraft operated in 

agricultural and survey roles. 

Over tightening of the pickup bolt will result in 

additional loads being applied to the pickup, which is 

designed to allow rotation about the aircraft 

longitudinal axis. 

An inspection of the fin forward pickup (consisting of 

P /N 11-1 0281-1, Qty 2 bonded together) is required 

to determine if there is any evidence of cracking. 

If cracking is found the plates are to be replaced. 

Results of inspections, with the aircraft flight hours 

and landing cycles are to be forward to Pacific 

Aerospace Limited. 

Next 150 Hour scheduled maintenance and 

thereafter at 600 Hour intervals, or annual inspection 

(whichever occurs first). 

NOTE: Modification PAC/XL/0629 is currently 

being developed as a product improvement to avoid 

excessive clamping of the forward fin pickup. This 

modification will be offered as a retrofit kit which, if 

implemented, will also extend the 600 hour 

inspection interval. 

As required to perform liquid penetrant inspection. 

No change. 

Maintenance Manual chapter 55-30-00. 

6 hours. 

I 

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Issued: 29 May 2014 
PACIFICAEROSPACE 

2. ACCOMPLISHMENT INSTRUCTIONS 

INSPECTION 

A. Visuallnspection: 

PACSB I XL I 068 

ISSUE 3 

1) Remove the fin (vertical stabilizer) lAW Maintenance Manual chapter 55-30-00. 

2) Carry out a detailed visual inspection of both the forward fin pickup plates for any 

evidence of cracking. 

3) If there is visual evidence of cracking in either of the two fin forward pickup plates then 

both plates must be replaced (refer to para C. below). 

4) If no visual evidence of cracking is found carry out liquid penetrant inspection as per 

para B. below. 

B. Liquid Penetrant Inspection: 

1) Prepare for a liquid penetrant inspection by removing paint from the external surfaces 

of the fin forward pickup plates extending above the fuselage. 

2) Carry out a liquid penetrant inspection lAW ASTM E1417 (or equivalent approved 

standard) of the fin forward pickup plates extending above the fuselage for any 

evidence of cracking. 

3) If there is evidence of cracking in either of the two fin forward pickup plates then both 

plates must be replaced (refer to para C. below). 

4) If no evidence of cracking is found, protect the assembly with paint lAW approved 

maintenance procedures and install the fin (vertical stabilizer) lAW Maintenance 

Manual chapter 55-30-00. 

5) Report the results of the inspections, with the aircraft flight hours and landing cycles to 

Pacific Aerospace Limited. 

REPLACEMENT 

C. Replacement of Fin Forward Pickup Plates: 

1) De-rivet the fin forward pickup plates from Frame STN 337.00. 

2) Bond the two new fin pickup plates (11-1 0281-1) together with adhesive sealant 

AMS-S-8802 lAW manufacturer's instructions, if not already supplied bonded together. 

3) Install the two new fin pickup plates to the frame assembly at STN 337.00 with 

MS20470AD5 solid rivets. 

4) Protect the assembly with paint lAW approved maintenance procedures. 

NOTE: There is a Bonding Strap (PIN BON-5-1) fitted between the fin 

and the fuselage located in close proximity to the forward fin 

pickup. This bonding strap must be refitted after inspection. 

5) Install the fin (vertical stabilizer) lAW Maintenance Manual chapter 55-30-00. 

Page 2 of 4 Issued: 29 May 2014 
PACIFICA EROSPA C E 

3. CERTIFICATION 

Record compliance with this bulletin in the aircraft Log Book. 

4. MATERIAL REQUIRED: 

PACSB I XL I 068 

ISSUE 3 

If the forward fin pickup is to be replaced then the following parts are required. Contact PAL for 

parts availability. 

Description 

FIN PICKUP- FORWARD - STN 337.00 

RIVET 

ADHESIVE SEALANT (PRC TYPE) 

Issued: 29 May 2014 

Part Number 

11-10281-1 

MS20470AD5 

AMS-S-8802 

Qty Required 

2 

10 

AIR 

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PACIFICAEROSPACE 

INTENTIONALLY LEFT BLANK 

Page 4 of 4 

PACSB I XL I 068 

ISSUE 3 

Issued: 29 May 2014