SDR 97UAL900378

Service difficulty report · Lockbolt · Boeing 727222

Difficulty date: May 16, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N7466U
Make and model: Boeing 727222
Aircraft serial: 21920
Engine: Pwa JT8D15
System (JASC): 7120 · Engine Mount Section
Part: Lockbolt
Condition: Loose
Location: Nr 3 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

DURING INITIAL INSPECTION OF THE SIDE ENGINE FORWARD ENGINE MOUNT SUPPORT FITTING REQUIRED BY SERVICE BULLETIN 727-54A0010, REVISION 4 (AD97- 05-08) TWO LOCKBOLTS WERE FOUND LOOSE IN THE NR 1 ENGINE POSITION AND FOUR FASTENERS WERE FOUND LOOSE IN THE NR 3 ENGINE POSITION. DISCREPANT FASTENERS WERE REPLACED WITH NAS BOLTS PER THE 727 STRUCTUAL REPAIR MANUAL 51-30-3.