- Model
- 18
- Data sheet
- TCDSA-723
- Registered aircraft
- 2 matched by model
- Product
- Aircraft · Large airplane
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 29 KB | 05a0e443…f4f4e2d | FAA DRS (API key needed) |
On this page
The airworthiness directive
48-42-02 LOCKHEED: Applies to All Model 18 Aircraft Operated in Scheduled and Non-scheduled Air Carrier Passenger Service.
To be accomplished not later than the date established in accordance with the provisions of special Civil Regulation Serial Number SR-329, or any subsequent regulation affecting this compliance date.
All Lockheed Model 18 aircraft mentioned above must be modified to comply with the fire prevention requirements as outlined in CAR Amendments 41-3, 42-2, and 61-2. Compliance with these requirements may be accomplished by completing the modifications outlined in the following listed Lockheed Service Bulletins. Other rework shown to be equivalent to that covered by the Service Bulletins will also be acceptable.
Item CAR 4
No. Lockheed Service Bulletin Title 1. .3824 18/SB-122 Revision to Waste Paper Container.
18/SB-123 Installation of No Smoking Placard. 2.
.38250 18/SB-124 Installation of Fire Detection andExtinguishing System.
.38251 18/SB-125 Installation of Hydraulic Reservoir Oil Tank Guard.
18/SB-126 Installation of Windshield Alcohol Tank Guard.
18/SB-127 Sealing of Baggage Compartment. 3. .43 18/SB-135 Material Substitution-Propeller Feathering Reserve Oil Tank Support. 4. .4700 18/SB-130 Firewall Revision. 5. .49
.4900 18/SB-128 Replacement of Power Plant Lines and Fittings.
.4901 18/SB-129 Installation of Emergency Oil Shut-Off Valves.
.4902 18/SB-131 Revision to Cabin Heater Ducts.
.4902 18/SB-133 Replacement of Firewall and Power Plant Lines & Fittings.
18/SB-136 Installation of Dual Fuel System Fire Resistant Plumbing Provisions for Selective Shut-Off -Propeller.
18/SB-141 Anti-Icing System (Airplanes having Standard Systems) Provisions for Selective Shut-Off - Propeller.
18/SB-141A Anti-Icing System (Airplanes with Tank & Pump in L.H. Nacelle).
In addition to the above, inspect cabin interior fabrics and finishes to determine that these materials or any substitutes or replacements for the materials originally installed comply with the applicable sections of CAR 4b. Safety Regulation Release 259 outlines acceptable procedures for complying with these particular requirements.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 2
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.