Service difficulty report · Lockbolt · Boeing 727222

Difficulty date
May 16, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N7447U
Make and model
Boeing 727222
Aircraft serial
21901
Engine
Pwa JT8D15
Part
Lockbolt
Condition
Loose
Location
Nr 1/3 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) THREE LOCKBOLTS WERE FOUND LOOSE BOTH AT THE NR 1 AND NR 3 ENGINE POSITIONS. DISCREPANT FASTENERS WERE REPLACED WITH NAS BOLTS PER THE 727 STRUCTURAL REPAIR MANUAL 51-30-3.