SDR 99UAL900379

Service difficulty report · Mount · Boeing 727222

Difficulty date: July 1, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N7442U
Make and model: Boeing 727222
Aircraft serial: 21896
Engine: Pwa JT8D15
System (JASC): 7120 · Engine Mount Section
Part: Mount
Condition: Cracked
Location: Nr 1 Pylon
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 ACCOMPLISHMENT OF BOEING SB 727-54A0019 AS MANDATED BY AD97-05-O8, A CRACK INDICATION WAS FOUND IN HOLE H COMMON TO THE NR 1 ENGINE PYLON FORWARD MOUNT. THE FASTENER HOLE H WAS OVERSIZED TO A DIAMETER OF O,3432-0.3442 INCH TO REMOVE THE CRACK AND AN OVERSIZED FASTENER INSTALLED, THIS REPAIR IS A DEVIATION TO AD 97-05-08 AND THEREFORE AN ALTERNATE MEANS OF COMPLIANCE WAS OBTAINED FROM THE FAA.