What was found
HYDRAULIC SYSTEM `B` NR 1 ELECTRIC HYDRAULIC PUMP FAILED. NIL PRESSURE AND METAL CONTAMINATION. INVESTIGATION FOUND THE FAILURE WAS DUE TO FAILURE OF THE PRE-MOD SB 57186-29-291 TRUNNION NEEDLE BEARING P/N 21830.
- Difficulty date
- May 7, 2005
- Submitted
- June 6, 2006
- Operation
- General aviation
- Make and model
- Boeing 7377Q8
- Engine
- Ge CFM56*
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Bearing
- Part number
- 21830
- Condition
- Failed
- Location
- Hydraulic Pump
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.