SDR SI3R98003

Service difficulty report · Retain Nut · Saab SF340A

Difficulty date
February 13, 1998
Submitted
March 26, 2000
Operation
General aviation
Filed by
SI3R842L
Hamilton Sundstrand World Wide Repair
Make and model
Saab SF340A
Engine
Ge CT79B
Part
Retain Nut
Part number
7757704
Condition
Loose
Location
Gc 49 Gearbox
Part time
8,381 hours
Component
Hamstd · 5074T51G10
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING DISASSEMBLY OF GEARBOX, THE DRIVE GEAR RETENTION NUT WAS REMOVED WITH NO TORQUE REQUIRED. INSTALLATION TORQUE IS 1,550 - 1,600 FEET/POUNDS. NUT P/N 775770-4, FIG 7 ITEM 25. (X)

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