Service difficulty report · Heat Exchanger · Boeing 737890

Difficulty date
June 18, 2016
Submitted
June 22, 2016
Operation
Air carrier
Aircraft
N512AS
Make and model
Boeing 737890
Aircraft serial
39043
Aircraft time
30,380 hours, 9,228 cycles
Engine
Cfmint CFM567B27B3
Part
Heat Exchanger
Part number
118411934
Part serial
YY083473B
Condition
Leaking
Location
Nr 2 Engine
Part time
36,714 hours, 11,182 cycles
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
K

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

What was found

SMALL FUEL LEAK ON NR 2 ENGINE. ACFT GROUNDED. FUEL LEAKING FROM NR 2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER DRAIN TUBE AT 1 DROP/5 SEC. FUEL LEAK TO BE REPAIRED WITHIN 75 FLIGHT CYCLES IAW AMM 71-71-00-200-801-F00. R & R NR 2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER IAW AMM 79-21-02-000-801-F00 AND 79-21-02-400-801-F00 COMPLETE UP TO STEP 3I. 1-TEST, 3A LEAK CHECK. ACCOMPLISHED IDLE LEAK CHECK TEST 3A IAW AMM 71-00-00-700-801-F00 STEP 5. NO LEAKS NOTED.