SDR 99ZZZX913

Service difficulty report · Master Rod · Boeing A75N1

Difficulty date
January 24, 1999
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N4935N
Make and model
Boeing A75N1
Aircraft serial
752087
Engine
Cont W67016
Part
Master Rod
Part number
A40083
Condition
Cracked
Location
Engine
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

MASTER ROD, PN A40083, BROKE AT BASE OF ROD POSSIBLY TO DUE METAL FATIGUE. METAL APPEARS TO HAVE BEEN CRACKED FOR SOME TIME PRIOR TO FAILURE EVIDENCED BY GRAY AREA AT SEPARATION AND LARGE AREA OF NON-DUCTILE METAL SEPARATION. MASTER ROD INSTALLED 219 HRS TSO. ROD HAD BEEN MAGNAFLUXED AS REQUIRED BY OHM. ENG HAD BEEN ON AN OIL SAMPLING PROGRAM AND SHOWED NO EVIDENCE OF AN ALERT REQUIRED.

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