# SDR FDEA201510283394

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2015
- Submitted: October 28, 2015
- Operation: Air carrier
- Aircraft: [N946FD](https://openairdocs.org/aircraft/N946FD), registered now
- Make and model: Boeing 757236
- Aircraft serial: 24398
- Aircraft time: 483 hours, 30,429 cycles
- Engine: Rroyce RB211535E4
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Left
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201510283394

## Discrepancy

AFTER TAKEOFF, AFTER 1000' AGL, CLIMB MODE, LT ENG EPR SURGED +/- 0.10% TOTAL OF 0.20 EPR, N1 BOUNCING +/-  10%.  QRH ENG LIMIT OR SURGE OR STALL CHECKLIST.  AT 50% N1 ENG STABILIZED.   INSPECTED PITOT HEADS ON LT SIDE, FOUND TWO HEADS MISSING.  INSPECTED RT SIDE FOUND ONE PITOT HEAD MISSING.  IAW MM 72-34-10-8-4 INSTALLED TWO PILOT RETENTION ASSY PLATES.  ONE ON THE LT SIDE & ONE ON THE RT SIDE ON THE LOW PRESS COMPRESSOR SUPPORT ASSEMBLY IAW EM 72-34-13-300-005.   PUSHED THROTTLES UNTIL EPR REACHED 1.58 ON NR 1 ENG.  STARTED TIMER, EPR & N1 WERE ROCK STEADY DURING THE HIGH POWER ENG RUN, USING JRH.  ACFT OK FOR SERVICE.

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