SDR ASAA2014021506854

Service difficulty report · Connector · Boeing 737890

Difficulty date: February 15, 2014
Submitted: February 19, 2014
Operation: Air carrier
Aircraft: N506AS
Make and model: Boeing 737890
Aircraft serial: 35690
Aircraft time: 21,811 hours, 6,776 cycles
Engine: Cfmint CFM567B27
System (JASC): 7797 · Engine Indicating System Wiring
Part: Connector
Part number: TC29603
Condition: Corroded
Location: Nr 2 Engine
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

DIAGNOSTICS REPORTED NR 2 ENGINE TREND DATA SHOWED A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. T49.5 RESISTANCE CHECKED, ALL VALUES WITHIN LIMITS, FOUND CONNECTOR DP0901 NOT SECURE WITH EVIDENCE OF LIGHT CORROSION ON SOCKETS. REMOVED CORROSION AND SECURED CONNECTOR. PERFORMED TEST 73-21-00-700-804-F00, IAW 71-00-00-800-811-F00, TBL 502, 7, TESTS GOOD.