What was found
CRACKED PNEUMATIC DUCT IN NR 4 PYLON FOR NR 4 AIR DRIVEN HYDRAULIC PUMP TURBINE DRIVE. WELD REPAIRED AND PRESSURE TESTED DUCT PER BAC PROCESS 5975.
- Difficulty date
- October 4, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N852FT
- Make and model
- Boeing 747122
- Aircraft serial
- 19757
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Pneumatic Duct
- Condition
- Cracked
- 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.