What was found
DURING TAKEOFF (PEK), THE NR 1 ENGINE EPR LAGGED. TAKEOFF WAS ABORTED AT 40 KNOTS. FLIGHT CREW TAXIED BACK TO DEPARTURE END OF RUNWAY AND DEPARTED. MAINTENANCE REPLACED THE HIGH STAGE CONTROLLER ON NR 1 ENGINE.
- Difficulty date
- April 2, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N638US
- Make and model
- Boeing 747251B
- Aircraft serial
- 23549
- Engine
- Pwa JT9D7R4G2
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Controller
- Part number
- 7880461
- Condition
- Malfunctioned
- Location
- Nr 1 Engine
- Part time
- 43,334 hours
- Stage of operation
- TO
- Nature of condition
- O
- Precautionary procedure
- C, D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.