Service difficulty report · Pressure Switch · Boeing 777222
FAA SDR system
- Difficulty date
- July 1, 2010
- Submitted
- July 12, 2010
- Operation
- Air carrier
- Make and model
- Boeing 777222
- Aircraft serial
- 30551
- Aircraft time
- 39,390 hours, 4,864 cycles
- Engine
- Pwa PW40903
- Part
- Pressure Switch
- Part number
- 21SN04459
- Part serial
- 178
- Condition
- Faulty
- Location
- Oil System
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG OIL FILTER R RIGHT ENGINE PRIMARY OIL FILTER APPROACHES BYPASS (LARGE PRESSURE DIFFERENTIAL ACROSS NORMAL FILTER) WITH ENGINE RUNNING. ACCOMPLISHED FIM 71-05 TASK 835 CHECKED MCDS REPLACED FILTER. REPLACED DIFF PRESS SWITCH. ACCOMPLISHED IDLE RUN, OPS NORMAL. NO LEAKS NOTED.