Service difficulty report · Control Valve · Boeing 777222
FAA SDR system
- Difficulty date
- December 21, 2011
- Submitted
- December 22, 2011
- Operation
- Air carrier
- Make and model
- Boeing 777222
- Aircraft serial
- 30222
- Aircraft time
- 45,518 hours, 5,557 cycles
- Engine
- Pwa PW40903
- Part
- Control Valve
- Part number
- 3930007102
- Part serial
- 198
- Condition
- Failed
- Location
- Le Slat
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- F, J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLATS PRIMARY FAIL PRIMARY (HYDRAULIC) SLAT DRIVE FAILURE. SLATS OPERATING IN SECONDARY (ELECTRICAL) MODE. CAUTION MSG01- LATCHED DESCENT MODE DEPENDENT; SLATS MOVE WITHOUT COMMAND. DB- FSEU 1 MSG02- LATCHED DESCENT MODE DEPENDENT; SLATS MOVE WITHOUT COMMAND. MSG-2721021 LATCHD DC MODE. MSG-2721021 LATCHD DC MODE. REPLACED SLAT PRIMARY CONTROL VLV WHICH IS BORROWED FROM S-CO PER MM. OPS CHECKED OKAY.