Service difficulty report · Blkhd Stiffener · Boeing 747124

Difficulty date
May 27, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N855FT
Make and model
Boeing 747124
Aircraft serial
19733
Part
Blkhd Stiffener
Condition
Sheared Rivits
Location
Nr 4 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

EIGHTEEN RIVETS SHEARED ON NR 4 PYLON AFT BULKHEAD STIFFENER AT NACELLE STATION 268.4 NACELLE WATER LINE 153.6. NEW RIVETS INSTALLED AND DETAILED INSPECTION WAS PERFORMED AT AFT BULKHEAD SUPPORTING STRUCTURE. NO OTHER DAMAGE FOUND. NOTE: PYLON MODIFICATION PER 54A2159 COMPLETED IN JANUARY 1996 AT 53048 HOURS AND 18684 CYCLES.