What was found
NR 1 ENGINE SILENT SURGE CHECKS. ECM DETECTED A 'SILENT' SURGE AT OR NEAR TOP OF DESCENT AT LOW POWER ON FLT 959-28. ECM DOES NOT SHOW ANY PARAMETER SHIFTS BEFORE THE SURGE. THIS IS THE SECOND SURGE WITHIN A WEEK.
- Difficulty date
- January 28, 2013
- Submitted
- February 15, 2013
- Operation
- Air carrier
- Aircraft
- N643UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25093
- Aircraft time
- 93,241 hours, 14,745 cycles
- Engine
- Pwa PW4060
- Engine time
- 66,674 hours, 7,752 cycles
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Engine
- Condition
- Surges
- Location
- Nr 1
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- R
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.