What was found
INSPECTION TYPE:C, NR 4 ENG PYLON NAC STN 150 APPROX INTERCOSTAL ACROSS FWD FIRESEAL CRACKED. NEW INTERCOSTAL FABRICATED IAW EO100830 AND FITTED IAW SRM 51-30-02.
- Difficulty date
- July 20, 2000
- Submitted
- October 13, 2000
- Operation
- Air carrier
- Aircraft
- N691UP
- Make and model
- Boeing 747121
- Aircraft serial
- 19641
- Aircraft time
- 95,273 hours, 22,812 cycles
- System (JASC)
- 5400 · Nacelle/Pylon Structure
- Part
- Intercostal
- Condition
- Cracked
- Location
- Nr 4 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.