AD 75-24-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-100 Series | BOEING Model 737-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | BOEING Model 737-100 and -200 Series Airplanes |
Unsafe Condition
Inadvertent deployment of ground spoilers in flight after the loss of system 'A' hydraulic pressure due to improved lubricity characteristics of Stauffer Aero Safe ER hydraulic fluid potentially unlocking the ground spoiler actuators.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 100 hours time in service after the AD's effective date, remove specified placards and install approved warning placards, or rework ground spoiler actuators, reidentify them, reinstall with new part numbers, remove old placards, and install service placards as per Boeing Service Bulletin 737-29-1027 or 737-27-1080. Compliance must be done in accordance with the service bulletins or FAA-approved methods.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 737-100 and -200 series airplanes listed in Boeing Service Bulletin 737-27-1080, certificated in all categories.
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.