AD 2005-19-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-300 | Airworthiness Directives; Boeing Model 737-300, -400, -500, -600, -700, -700C, -800 and -900 Series Airplanes |
Unsafe Condition
FMC displaying the incorrect actual navigation performance value to the flightcrew, which could prevent adequate alerting of a potential navigation error.
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Required Actions
Install an updated version of the operational program software (OPS) and certain other software in the flight management computers (FMCs). Perform configuration checks to ensure proper installation of the software. Reinstall software if necessary.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 737-300, -400, -500, -600, -700, -700C, -800, and -900 series airplanes equipped with two certain FMCs having part numbers 171497-05-01 or 176200-01-01, installed with OPS versions U10.3, U10.4, U10.4A, or U10.5.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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