SDR P5CA0200683

Service difficulty report · Web · Boeing 747249F

Difficulty date: June 7, 2002
Submitted: June 12, 2002
Operation: Air carrier
Aircraft: N920FT
Make and model: Boeing 747249F
Aircraft serial: 22237
Aircraft time: 70,235 hours, 17,248 cycles
Engine: Pwa JT9D7Q
Engine time: 52,639 hours, 13,193 cycles
System (JASC): 5420 · Nacelle/Pylon Miscellaneous Structure
Part: Web
Condition: Cracked
Location: Nr 3 Pylon
Stage of operation: IN
How discovered: V
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

THREE CRACKS FOUND ON NR 3 ENG PYLON, AFT ENGINE MOUNT BULKHEAD FRAME, VERTICAL WEB STATION 221.9. (1. CRACK ON FRONT OF OUTBOARD WEB, 2 INCHES LONG. 2. CRACK ON FRONT OUTBOARD WEB, 1 INCH LONG. 3. CRACK ON FRONT OUTBOARD WEB, 3 INCHES LONG). BULKHEAD LOWER ASSY REPAIRED BY INSTALLING WEB FILLERS, WEB DOUBLERS AND ANGLE CORDS ON LEFT AND RIGHT FRAME HALVES IAW PAOE020524, DRAWING 65B07582, SHT 8, SB747-54-A2202 & SB747-54-2065.