SDR ASAA2017082921758

Service difficulty report · Nut Plate · Boeing 737990ER

Difficulty date: August 29, 2017
Submitted: August 31, 2017
Operation: Air carrier
Aircraft: N467AS
Make and model: Boeing 737990ER
Aircraft serial: 36362
Aircraft time: 13,045 hours, 4,327 cycles
Engine: Cfmint CFM567B27E
Engine time: 14,986 hours, 4,929 cycles
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Nut Plate
Condition: Corroded
Location: Nr 1 Inlet
Part time: 14,986 hours, 4,929 cycles
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

NR 1 ENGINE INLET AND FAN BLADE DETAILED INSPECTION. FOUND NUTPLATES THAT HAVE POSSIBLE CORROSION AROUND NUTPLATE AND FAN FRAME CASE, FOR AFT O/B ACOUSTICAL PANELS. FROM 3 O'CLOCK TO 9 O'CLOCK ON LOWER SIDE OF CASE. ACFT GROUNDED. NR 1 ENGINE IS BEING REPLACED.