What was found
AIR TURNBACK, DURING CLIMB OUT DETECTED ABNORMAL ENGINE VIBRATION FROM NR 1 ENGINE, ABOVE 1.7 EPR. R&R NR 1 ENG HYD PUMP & CASE DRAIN FILTER PER MM. OPS & LEAK CHECK GOOD.
- Difficulty date
- April 21, 2001
- Submitted
- April 30, 2001
- Operation
- Air carrier
- Make and model
- Boeing 7372H4
- Aircraft serial
- 22673
- Aircraft time
- 61,742 hours, 67,111 cycles
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pump
- Part number
- 6915863
- Condition
- Vibrates
- Location
- Nr 1 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.