SDR P5CA9701559

Service difficulty report · Compressor · Boeing 747123

Difficulty date: September 14, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N859FT
Make and model: Boeing 747123
Aircraft serial: 20326
Engine: Pwa JT9D7AH
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Stalled
Location: Nr 3 Engine
Stage of operation: TO
Nature of condition: R
Precautionary procedure: C, D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ENGINE COMPRESSOR STALL OCCURED DURING TAKEOFF WITH MOMENTARY DIRECTIONAL INSTABILITY, NO UNUSUAL ENGINE INDICATIONS OBSERVED. ABORTED TAKEOFF AND RETURNED TO BLOCKS. PERFORMED VISUAL INSPECTION PER BAC MM 71-00-43 AND BORESCOPE INSPECTION OF ENGINE COMPRESSOR STAGES 8 AND 9 PER MM 72-00-00, NO FAULT OR DAMAGE FOUND. PERFORMED HIGH POWER ENGINE RUN AND ALL PARAMETERS NORMAL PER MM 71-00-00.