Service difficulty report · Starter · Boeing 737890

Difficulty date
January 31, 2020
Submitted
February 1, 2020
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
49,725 hours, 14,722 cycles
Engine
Cfmint CFM567B27
Part
Starter
Part number
350594512
Part serial
GRTA9041
Condition
Leaking
Location
Nr 1 Engine
Part time
42,762 hours, 14,257 cycles
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 RATES ARE HIGHER THAN EXPECTED. ACCOMPLISH VISUAL INSPECTION OF OIL LINES AND OIL SYSTEM COMPONENTS FOR EVIDENCE OF OIL LEAKAGE. GROUNDED - YES. FOUND EVIDENCE OF OIL LEAKAGE AT STARTER DRIVE PAD AREA, CLEANED AREA AROUND STARTER AREA ,BAGGED 3EA GEAR BOX DRAIN TUBES, NO FLUID IN BAGS AFTER IDLE LEAK CHECK, ON PART POWER RUN IAW AMM 71-00-00-700-823-F00. AFTER TEST 3B, FOUND STARTER QAD ADAPTER LEAKING, REMOVED AND REPLACED STARTER ASSY 80-11-01/401-F00 DUE TO HIGH TIME. INSTALLED WITH NEW O-RING ON QAD ADAPTER IAW AMM 80-11-02-400-801-F00. NO LEAKS NOTED.