What was found
INSPECTION TYPE: C, NR 3 PYLON REAR MOUNT BULKHEAD FOUND CRACK AT FWD AND AFT WEB (NAC 221 TO 221). NR 3 PYLON REAR ENG MOUNT BULKHEAD LWR ASSY FRAME WEB INTERIM REPAIR ACCOMPLISHED AS PER RS R54-53-35090 & UPS AUTH 747-54-20043.
- Difficulty date
- October 15, 2003
- Submitted
- November 3, 2003
- Operation
- Air carrier
- Aircraft
- N525UP
- Make and model
- Boeing 747212B
- Aircraft serial
- 21939
- Aircraft time
- 80,338 hours, 15,279 cycles
- System (JASC)
- 5412 · Nacelle/Pylon, Bulkhead/Firewall
- Part
- Bulkhead
- Part number
- 65B90412
- Condition
- Cracked
- Location
- Nr 3 Pylon
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.