What was found
EXPERIENCED COMPLETE LOSS OF NR 1 HYD SYS PRIOR TO DESCENT. FOUND SYS 1 RETURN LINE WITH A PUNCTURE, IPC REFERENCE 29-11-60-001J, ITEM 270. R & R NR 1 HYD SYS RETURN LINE. SYS OPERATIONS & LEAK CHECKED OK.
- Difficulty date
- February 23, 2015
- Submitted
- February 24, 2015
- Operation
- Air carrier
- Aircraft
- N118UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28811
- Aircraft time
- 64,243 hours, 7,486 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Hydraulic Line
- Condition
- Punctured
- Location
- Hydraulic Sys
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.