- Difficulty date
- December 23, 2021
- Submitted
- December 27, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7377BD
- Aircraft serial
- 34861
- Aircraft time
- 51,126 hours, 27,369 cycles
- Part
- Pump
- Condition
- Faulty
- Location
- #1 Engine
- Stage of operation
- CR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE 1 HYDRAULIC COW PRESSURE LIGHT ILLUMINATED ; LP #2061637 / [01] R&R #1 ENG ENGINE DRIVE HYDRAULIC PUMP PER AMM 29-11-11. REPLACED BOTH CASE DRAIN FILTERES & RETURN FILTER PER AMM 29-11-51 & AMM 29-11-61. SEE LOG PAGE 2061638 FOR LEAK & CHECK FILTER REPLACEMENT.