Service difficulty report · Adapter · Boeing 737890

Difficulty date
March 2, 2018
Submitted
March 6, 2018
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
42,058 hours, 12,477 cycles
Part
Adapter
Part number
1851M57P01
Condition
Leaking
Location
Starter
Stage of operation
IN
How discovered
9
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

NR 1 ENGINE OIL CONSUMPTION TRENDING HIGHER THAN EXPECTED, FAILS TEST 3B OIL LEAK PRESENT AT STARTER QAD ADAPTER 6 O'CLOCK POSITION. ACFT GROUNDED. REMOVED LEAKING STARTER DRIVE PAD. REINSTALLED DRIVE PAD WITH NEW O-RINGS IAW CFM SHOP MANUAL 72-63-00-430-3. M. (7) B. REINSTALLED STARTER IAW AMM 80-11-01-400-3.A- H. REINSTALLED EEC ALT IAW AMM 73-21-08-400 3. F.(1) (H)-(N). REINSTALLED N2 SENSOR IAW AMM 77-11-02-400 3. A-G. ALL TESTS OF COMPONENTS CHECKED GOOD IAW PP TEST REFERENCE TABLE IN AMM 71-00-00-800. IDLE LEAK CHECK OF DRIVE PAD GOOD. ACCOMPLISHED T/C N8472002 ON NR 1 ENGINE TEST 1, TEST 3A, AND TEST 13 PASSED. NO LEAKS OR FAULTS NOTED.