# Airworthiness directives that may apply: Douglas DC-4

A list on [Douglas DC-4](https://openairdocs.org/model/douglas-dc-4.md).

Matched by model name and maker. Each AD’s applicability may narrow it by serial number, part number or configuration.

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02.md): Navigation · Effective Jul 1, 2026
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02.md): Indicating/Recording System, Navigation · Effective May 26, 2023 · Supersedes AD 2021-23-12
- [AD 2011-12-01](https://openairdocs.org/ad/2011-12-01.md): Equipment/Furnishings · Effective Aug 1, 2011
- [AD 2000-04-03](https://openairdocs.org/ad/2000-04-03.md): Airframe Pneumatic Deicing Boots · Effective Mar 28, 2000
- [AD 98-04-35](https://openairdocs.org/ad/98-04-35.md): AFM - Limitations Section - Icing · Effective Mar 25, 1998
- [AD 93-14-12](https://openairdocs.org/ad/93-14-12.md): Crewmember Protective Breathing Equipment Units · Effective Sep 2, 1993
- [AD 85-23-04](https://openairdocs.org/ad/85-23-04.md): LH/RH Elevator Trim Tab Inspection · Effective Dec 5, 1985
- [AD 47-02-03](https://openairdocs.org/ad/47-02-03.md): Accumulator · Effective Mar 27, 1980
- [AD 77-10-01](https://openairdocs.org/ad/77-10-01.md): Fire Resistant Prop Feathering System · Effective Jun 16, 1977
- [AD 62-26-01](https://openairdocs.org/ad/62-26-01.md): Operating Restrictions · Effective Jan 8, 1963
- [AD 57-16-01](https://openairdocs.org/ad/57-16-01.md): Nose Gear Piston Tube
- [AD 56-20-05](https://openairdocs.org/ad/56-20-05.md): Propeller Operating Limits
- [AD 53-19-01](https://openairdocs.org/ad/53-19-01.md): Generator Cooling Fan
- [AD 51-09-02](https://openairdocs.org/ad/51-09-02.md): Hinge Brackets And Bolts
- [AD 49-46-01](https://openairdocs.org/ad/49-46-01.md): Vacuum System Fusible Plug
- [AD 49-38-02](https://openairdocs.org/ad/49-38-02.md): Bolt Replacement
- [AD 49-27-03](https://openairdocs.org/ad/49-27-03.md): Nose Gear Yoke End And Fittings
- [AD 48-44-01](https://openairdocs.org/ad/48-44-01.md): Nose Gear Orifice Fitting
- [AD 48-28-02](https://openairdocs.org/ad/48-28-02.md): Cabin Heater Combustion Ducts
- [AD 48-25-01](https://openairdocs.org/ad/48-25-01.md): Fire Warning System
- [AD 48-17-04](https://openairdocs.org/ad/48-17-04.md): Vacuum Pumps
- [AD 48-15-03](https://openairdocs.org/ad/48-15-03.md): Hydraulic Pressure Regulator Rework
- [AD 48-12-02](https://openairdocs.org/ad/48-12-02.md): Nose And Cabin Heater Rework
- [AD 48-12-01](https://openairdocs.org/ad/48-12-01.md): Fire Prevention Requirements
- [AD 48-09-02](https://openairdocs.org/ad/48-09-02.md): Electrical Distribution Bus
- [AD 48-09-01](https://openairdocs.org/ad/48-09-01.md): Fuel Transfer Placard
- [AD 48-06-05](https://openairdocs.org/ad/48-06-05.md): Control Surface Attachment Rework
- [AD 48-03-02](https://openairdocs.org/ad/48-03-02.md): Emergency Air Brake
- [AD 48-02-02](https://openairdocs.org/ad/48-02-02.md): Fire Detector Clamp
- [AD 48-01-01](https://openairdocs.org/ad/48-01-01.md): Wheel-Retaining Flange
- [AD 47-42-03](https://openairdocs.org/ad/47-42-03.md): Fire Prevention Changes
- [AD 47-42-02](https://openairdocs.org/ad/47-42-02.md): Cowling Fire Seal
- [AD 47-42-01](https://openairdocs.org/ad/47-42-01.md): Gust Lock Rework
- [AD 47-33-01](https://openairdocs.org/ad/47-33-01.md): Horizontal Stabilizer Outer Hinge Bracket
- [AD 47-27-04](https://openairdocs.org/ad/47-27-04.md): Exhaust Collector Rings
- [AD 47-27-02](https://openairdocs.org/ad/47-27-02.md): Spar Web Structure
- [AD 47-16-02](https://openairdocs.org/ad/47-16-02.md): Flexible Conduit Between the Solenoid and the Firewall Junction Box
- [AD 47-16-01](https://openairdocs.org/ad/47-16-01.md): Circuit Breaker Switches in Each Nacelle Junction Box
- [AD 47-12-02](https://openairdocs.org/ad/47-12-02.md): Center Main Bearings
- [AD 47-12-01](https://openairdocs.org/ad/47-12-01.md): Openings Around the Control Cables and Flap Buss System
- [AD 47-02-06](https://openairdocs.org/ad/47-02-06.md): Hydraulic Hand Pump Shutoff Valve
- [AD 47-02-05](https://openairdocs.org/ad/47-02-05.md): Electrical System
- [AD 47-02-04](https://openairdocs.org/ad/47-02-04.md): Engine Primer Solenoid
- [AD 47-02-02](https://openairdocs.org/ad/47-02-02.md): Vertical Stabilizer Forward Attach Fitting
- [AD 47-02-01](https://openairdocs.org/ad/47-02-01.md): Exhaust Collector Rings
- [AD 46-27-02](https://openairdocs.org/ad/46-27-02.md): Nose Wheel Brace Strut Collar
- [AD 74-08-09 R2](https://openairdocs.org/ad/74-08-09-R2.md): Waste Receptacles · Historical · Effective Jul 29, 1996 · Replaced by AD 74-08-09 R3

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('3021502'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/model/douglas-dc-4/ads

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