Service difficulty report · Support · Bell 407

Difficulty date
November 3, 1999
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Bell 407
Engine
Allsn 250C47B
Part
Support
Part number
4070238001178
Condition
Cracked
Location
Tailboom
Part time
1,978 hours
Component
407023800101
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

(CAN) FOLLOWING OVERTORQUE INSPECTION (113 PERCENT FOR .1 SEC), CRACKS WERE NOTICED (3) IN THE BEND RADIUS OF THE HORIZONTAL STABILIZER UPPER SUPPORTS. PARTS WERE REPLACED IAW BELL REPAIR SCHEME. NO OTHER DEFECTS NOTED. REPAIR SCHEME INCLUDES INSTRUCTIONS ON SHIMMING SUPPORTS (FOUND WITHOUT SHIMS FROM BELL). SUBMITTER STATED SHIMMING INFO NOT FOUND IN MAINTENANCE MANUALS.

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