AD 92-07-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
Unsafe Condition
Uncommanded changes to the target altitude displayed in the altitude window of the autopilot mode control panel (MCP) due to Sperry SP300 Autopilot Flight Control Computers and Mode Control Panels.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Incorporate specified procedures into the AFM's Limitations Section within 10 days after April 5, 1990 for Model 737-300 series. Modify the MCP within 18 months after May 4, 1992 for all models per Boeing Alert Service Bulletin 737-22A1098. Remove AFM limitations after MCP modification.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 days after April 5, 1990 (for Model 737-300 series) and within 18 months after May 4, 1992 (for all models).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BOEING Model 737-300, -400, and -500 series airplanes equipped with Sperry SP300 Autopilot Flight Control Computers and Mode Control Panels (MCP).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.