What was found
RT ENGINE IDG SHOWS ON MAINTENANCE SYNOPTIC BLOCKED FILTER. SERVICED IDG TO FULL, CHECKED DELTA P INDICATOR FOUND SET. MAT DEFAULTED TO RT GCU. REPLACED RT GCU AND OPERATED ENGINE, ALL OPS CHECKED SATIS.
- Difficulty date
- August 30, 2012
- Submitted
- September 4, 2012
- Operation
- Air carrier
- Aircraft
- N771UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26932
- Aircraft time
- 67,920 hours, 12,299 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 2421 · AC Generator-Alternator
- Part
- Gcu
- Part number
- 756603E
- Part serial
- 134
- Condition
- Faulty
- Location
- Rt Engine
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.