What was found
RAT BACKDRIVE TEST FAILS, GREEN LIGHT DOES NOT ILLUMINATE ON RAT TACHOMETER. R & R RAT TACHOMETER IAW MM. OPS CHECK GOOD IAW MM. OPS CHECK GOOD PER MM.
- Difficulty date
- February 12, 2011
- Submitted
- March 10, 2011
- Operation
- Air carrier
- Aircraft
- N519UA
- Make and model
- Boeing 757222
- Aircraft serial
- 24872
- Aircraft time
- 67,188 hours, 25,231 cycles
- Engine
- Pwa PW2040
- System (JASC)
- 2920 · Hydraulic System, Auxiliary
- Part
- Tachometer
- Condition
- Faulty
- Location
- Ram Air Turbine
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.