What was found
NR 1 ENGINE TORQUE DROPPED TO 70- 72 PERCENT AND WAS SURGING. NP STAYED AT 100 PERCENT WHEN SELECTING CLIMB. R & R LEFT VALVE IAW JIC 36-11-63. OPS CHECKED GOOD.
- Difficulty date
- August 6, 2011
- Submitted
- August 22, 2011
- Operation
- Air carrier
- Aircraft
- N541AT
- Make and model
- Aerosp ATR72212A
- Aircraft serial
- 541
- Aircraft time
- 2,203,933 hours
- Engine
- Pwa PW127
- Propeller
- Hamstd 247F1
- System (JASC)
- 6110 · Propeller Assembly
- Part
- Valve
- Condition
- Malfunctioned
- Location
- Nr 1 Propeller
- Stage of operation
- CL
- 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.