FAA Orders Checks on 737 Exhaust Nozzles to Avoid Engine Failures
Published Date: 3/4/2025
Rule
Summary
If you own certain Boeing 737 planes, the FAA wants you to check and fix parts on the engine’s exhaust nozzle to keep flights safe. This comes after some scary engine problems caused damage and emergency landings. You’ll need to inspect, possibly install new parts, and update maintenance plans soon, but it’s all about keeping everyone flying safely without breaking the bank.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 2 costs, 0 mixed.
Inspections and Parts Installation Mandated
If you own certain Boeing 737-600, -700, -700C, -800, -900, or -900ER airplanes, the AD requires you to inspect or check maintenance records to see if the primary exhaust nozzle has an affected part number. For affected nozzles, you must install bridge brackets onto the primary exhaust nozzle or install a serviceable primary exhaust nozzle.
Safer Flights for Certain 737s
If you fly on Boeing Model 737-600, -700, -700C, -800, -900, or -900ER airplanes, this rule is meant to reduce the chance of engine-related damage that could cause loss of pressurization, emergency descents, or parts striking the fuselage or windows. The FAA says the rule addresses cracks in the primary exhaust nozzle that could lead to the nozzle departing the airplane.
Maintenance Programs Must Be Updated
Operators of the affected Boeing 737 series must revise their existing maintenance or inspection programs to add new airworthiness limitations required by this AD. This change becomes part of ongoing maintenance obligations for those airplanes.
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