SDR ASAA2020030932394

Service difficulty report · Pin · Boeing 737890

Difficulty date: March 8, 2020
Submitted: March 10, 2020
Operation: Air carrier
Aircraft: N530AS
Make and model: Boeing 737890
Aircraft serial: 36578
Aircraft time: 38,600 hours, 11,345 cycles
Engine: Cfmint CFM567B27
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Pin
Condition: Loose
Location: Nr 1 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

WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND 4 GUIDE PINS LOOSE IN BOOSTER SPOOL. GROUNDED - YES. REMOVED 4 GUIDE PINS IN #1 ENGINE BOOSTER SPOOL REF B737-800 AMM 72-21-02-300-805-F00. INSPECTED FAN DISK MATING SURFACE AND BOLT HOLE FOR DAMAGE, NO DAMAGE NOTED REF AMM 72-21-02-200-801-F00. INSTALLED #1 ENGINE GUIDE PIN 3 OF 4 IN BOOSTER SPOOL REF AMM 72-21-02-300-805-F00, INSTALLED 4 OF 4, #1 ENGINE GUIDE PIN IN BOOSTER SPOOL IAW AMM 72-21-02-300-805-F00.