AD 98-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A321-111 | Airworthiness Directives; Airbus Model A321 Series Airplanes |
| aircraft | Airbus | A321-112 | Airworthiness Directives; Airbus Model A321 Series Airplanes |
| aircraft | Airbus | A321-131 | Airworthiness Directives; Airbus Model A321 Series Airplanes |
| aircraft | Airbus | A321-211 | Airworthiness Directives; Airbus Model A321 Series Airplanes |
| aircraft | Airbus | A321-231 | Airworthiness Directives; Airbus Model A321 Series Airplanes |
Unsafe Condition
The flight management and guidance computer (FMGC) can generate erroneous roll-out guidance due to software calculation errors when performing automatic landings on runways with a magnetic orientation of 170 degrees through 190 degrees inclusive, which could result in the airplane departing the runway upon landing.
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Required Actions
Revise the Airplane Flight Manual (AFM) Limitations Section to prohibit automatic landings and Category III operations on runways with a magnetic orientation of 170 degrees through 190 degrees inclusive. Optional terminating action is provided for the AFM revision.
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Compliance Time
Effective October 7, 1998.
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Affected Aircraft
Airbus Model A321 series airplanes equipped with CFM engines (except those with Modification 25469) or IAE engines (except those with Modification 26243), as specified in the applicability provisions referencing specific service bulletins.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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