Service difficulty report · Pressure Switch · Boeing 737990ER
FAA SDR system
- Difficulty date
- December 12, 2017
- Submitted
- December 13, 2017
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41704
- Aircraft time
- 16,491 hours, 5,402 cycles
- Engine
- Cfmint CFM567B27E
- Part
- Pressure Switch
- Part number
- QA07995
- Part serial
- YY109398T
- Condition
- Failed
- Location
- Nr 1 Fuel Filter
- Part time
- 14,687 hours, 4,818 cycles
- Stage of operation
- TX
- 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.
What was found
INTERMITTENT #1 FUEL FILTER BYPASS LIGHT DURING EXTENDED TAXI ON GATE. GROUNDED - YES. REMOVED AND REPLACED THE #1 ENG FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF B737-900 AMM 73-34-01. OPS CHECKS NORMAL. NO LEAKS NOTED. EEC BITE CHECK NORMAL, NO FAULTS LOGGED. GROUND IDLE RUN PASSED. MEL 73-4B CLEARED.