AD 97-19-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B2-1A | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B2-1C | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B2-203 | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B2K-3C | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-103 | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-203 | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-2C | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-601 | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-603 | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
| aircraft | Airbus | AlliedSignal Inc | The Boeing Company | A300 B4-605R | Airworthiness Directives; AlliedSignal Inc. TSCP700-4B and -5 Auxiliary Power Units |
Unsafe Condition
First stage low pressure compressor (LPC) disk rim separation due to low cycle fatigue, which could result in an uncontained APU failure and damage to the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service first stage LPC disks (Part Number 3606429-1) in accordance with AlliedSignal Service Bulletin TSCP700-49-7266, replace with serviceable parts, and establish a life limit of 8,000 cycles since new (CSN).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Required as indicated, unless accomplished previously.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AlliedSignal Inc. TSCP700-4B and -5 auxiliary power units (APUs) with first stage low pressure compressor disks, Part Number 3606429-1, installed on Airbus A300 series and McDonnell Douglas DC-10 and KC-10 aircraft.
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.