Service difficulty report · Fire Loop · Boeing 7472D7B

Difficulty date
February 22, 2005
Submitted
March 15, 2005
Operation
Air carrier
Aircraft
N526MC
Make and model
Boeing 7472D7B
Aircraft serial
22337
Part
Fire Loop
Condition
Chafed
Location
Nr 4 Engine
Stage of operation
TO
How discovered
O
Nature of condition
N
Precautionary procedure
C

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

What was found

FLT EI 9867 - ON TAKEOFF ROLL, NR 4 ENGINE FIRE WARNING LIGHT AND BELL CAME ON. MAX BRAKES APPLIED AT 95 KTS. TAKEOFF ABORTED. INSPECTED NR 4 ENGINE, NO PRIMER DISCOLORATION OR ANY SIGN OF HEAT DAMAGE. PERFOMED NR 4 ENGINE PNEUMATIC LEAK CHECK, NORMAL PER 71-00-00. PERFORMED HIGH ENERGY STOP HEAT DAMAGE CONDITION INSPECTION. ALL NORMAL PER AMM 5-51-10. CHECKED NR 4 ENGINE FIRE DETECTION SYSTEM A AND B. REPAIRED INSULATION CHAFFED WIRING B-LOOP AT 12 AND 3 O'CLOCK POSITION PER 26-11-52. PERFORMED ENGINE HIGH POWER RUN UP CHECK, ALL NORMAL. REF LOG PAGES 542971, 542972 AND 542973. (M)

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