Type Record · As of May 3, 2026
DOUGLAS AIRCRAFT CO AD-6
Fixed Wing Single Engine · AMA/EXPR UNKNOWN ENG
Registered
1
Year Range
1956–1956
NTSB Events
0
Airworthiness Directives
9
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered DOUGLAS AIRCRAFT CO AD-6 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- TN 100.0% 1
By Decade of Manufacture
- 1950s 100.0% 1
02 / NTSB Records
Events involving DOUGLAS AIRCRAFT CO AD-6 aircraft
No NTSB-recorded events match DOUGLAS AIRCRAFT CO AD-6 in the indexed corpus.
03 / Airworthiness Directives
FAA directives applicable to DOUGLAS AIRCRAFT CO AD-6
9 directive(s) on file. Showing the most recent 9.
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Nov 10, 2008
Airworthiness Directives; Boeing Model 727-200 and 727-200F Series Airplanes; 737-200, 737-200C, 737-300, and 737-400 Series Airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes; 757-200, 757-200CB, and 757-200PF Series Airplanes; and 767-200 and 767-300 Series Airplanes
We are adopting a new airworthiness directive (AD) for certain Boeing transport category airplanes. This AD requires replacing any insulation blanket constructed of polyethyleneteraphthalate (PET) film, ORCON Orcofilm[reg] AN-26 (hereafter "AN-26"), with a new insulation blanket. This AD results from reports of in-fli…
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Sep 30, 2003
Airworthiness Directives; Pratt & Whitney PW4000 Series Turbofan Engines
This amendment supersedes an existing airworthiness directive (AD), that is applicable to Pratt & Whitney (PW) models PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines. That AD currently requires interim actions to address eng…
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Jul 21, 2003
Airworthiness Directives; Pratt & Whitney PW4000 Series Turbofan Engines
The Federal Aviation Administration (FAA) proposes to supersede an existing airworthiness directive (AD), that is applicable to Pratt & Whitney (PW) model PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines. That AD currently re…
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Jun 6, 2003
Airworthiness Directives; Pratt and Whitney PW4000 Series Turbofan Engines
This amendment supersedes an existing airworthiness directive (AD), that is applicable to Pratt and Whitney (PW) model 4000 series turbofan engines. That AD currently requires interim actions to address engine takeoff power loss events until the high-pressure-compressor (HPC) case is redesigned and available for incor…
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Apr 7, 2003
Airworthiness Directives; Pratt and Whitney PW4000 Series Turbofan Engines
The Federal Aviation Administration (FAA) proposes to supersede an existing airworthiness directive (AD), that is applicable to Pratt and Whitney (PW) model 4000 series turbofan engines. That AD currently requires interim actions to address engine takeoff power loss events until the high-pressure-compressor (HPC) case…
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Oct 25, 2002
Airworthiness Directives; Pratt and Whitney PW4000 Series Turbofan Engines
This amendment supersedes an existing airworthiness directive (AD) that is applicable to Pratt and Whitney (PW) model 4000 series turbofan engines. That action required PW4000 engines with potentially reduced stability margin to be limited to no more than one engine on each airplane, and required removing engines that…
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Jul 23, 2002
Airworthiness Directives; Pratt and Whitney PW4000 Series Turbofan Engines
The Federal Aviation Administration (FAA) proposes to supersede an existing airworthiness directive (AD), that is applicable to Pratt and Whitney (PW) model PW4000 series turbofan engines. That AD currently requires the number of PW4000 engines with potentially reduced stability margin to be limited to no more than on…
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Jun 1, 2001
Airworthiness Directives; CFM International (CFMI) CFM56-2, -2B, -3, -5B, -5C and -7B Series Turbofan Engines
This amendment adopts a new airworthiness directive (AD) that is applicable to CFMI CFM56-2, -2B, -3, -5B, -5C and -7B series turbofan engines. This action requires limiting engines with certain No. 4 bearings to one on each airplane, replacement of certain No. 4 bearings, and increased frequency of inspections for ma…
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Nov 25, 1998
Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to General Electric Company (GE) CF6 series turbofan engines, that currently requires initial and repetitive ultrasonic and eddy current inspections of high pressure compressor rotor (HPCR) stage 3-9 spools for cracks. This…
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for DOUGLAS AIRCRAFT CO AD-6
Advisory Circulars
ACs whose subject explicitly mentions DOUGLAS AIRCRAFT CO or AD-6.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 1 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N665TC | TN | 1956 | · | Look up ↗ |
Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →