SDR 2021F00052

Service difficulty report · Heat Exchanger · Boeing 737852

Difficulty date: May 15, 2021
Submitted: May 26, 2021
Operation: General aviation
Make and model: Boeing 737852
Aircraft serial: 43657
Aircraft time: 22,568 hours, 8,256 cycles
System (JASC): 2120 · Air Distribution System
Part: Heat Exchanger
Condition: Dirty
Stage of operation: TO
How discovered: O
Nature of condition: B
Precautionary procedure: C

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

What was found

REJECTED TAKEOFF DUE TO SMOKE IN CABIN CREW. AIRCRAFT REJECTED TAKEOFF AT 72 KNOTS DUE TO SMOKE IN CABIN CREW. MAINTENANCE PERSONNEL PERFORMED SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW MM 05-51-56 AND FIM 21-00 TASK 806 PROCEDURE, DETECTING LH AND RH HEAT EXCHANGER AND PLENUM/DIFFUSER ASSEMBLY DIRTY; SO THE LH AND RH HEAT EXCHANGER AND PLENUM/DIFFUSER ASSEMBLY WERE CLEANED IAW AMM 21-51-03-160-807; THE AIR CONDITIONING SYSTEM TEST WAS PERFORMED IAW AMM 21-00-05, TESTED.