SDR ASAA2022111340755

Service difficulty report · Spacer · Boeing 737990ER

Difficulty date: November 13, 2022
Submitted: November 14, 2022
Operation: Air carrier
Aircraft: N434AS
Make and model: Boeing 737990ER
Aircraft serial: 61620
Aircraft time: 24,483 hours, 7,618 cycles
Engine: Cfmint CFM567B27E
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Spacer
Part number: 3401169310
Condition: Debonded
Location: Nr 1 Eng Fan
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, FAN BLADE LUBRICATION, FOUND ELASTOMER ON SPACERS # 1,2,4,7,8,9,13,16 AND 19 DISBONDED. REQUIRE REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED NO. 1 ENG FAN BLADE SPACERS # 1,2,4,7,8,9,13,16 AND 19 REF TASK CARD #78472010.