# N317TW: 1988 WDL WDL 1B, registration cancelled 2012-10-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 12, 2012
- Status when cancelled: Third renewal notice
- Airframe: [WDL WDL 1B](https://openairdocs.org/model/wdl-wdl-1b) (registry code 9700101)
- Engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025)
- Data sheets: [TCDS E1CE](https://openairdocs.org/tcds/E1CE) (OpenAirDocs)
- Serial number: 105
- Year built: 1988
- Type of aircraft: Blimp/Dirigible
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: June 18, 1993
- Certificate issued: June 21, 1993
- Last registry action: December 18, 2007
- Mode S code: A36290
- Owner when cancelled: [US Airship Leasing Inc](https://openairdocs.org/faa-owner/US%20AIRSHIP%20LEASING%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Non-citizen corporation
- Owner's area on the map: 39.7376° N, 75.6671° W: Placed by OpenAirDocs at the center of ZIP code 19808, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N317TW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=317TW
- Page: https://openairdocs.org/deregistered/N317TW-2012-10-12

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the WDL WDL 1B: https://openairdocs.org/model/wdl-wdl-1b.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB NYC94FA176](https://openairdocs.org/ntsb/NYC94FA176), Sep 11, 1994: WDL 1B (N317TW), Farmingdale, NY, substantial damage. Probable cause: INADEQUATE DESIGN OF THE AIRSHIP, WHICH ALLOWED THE CENTER BALLONET TO OVERFILL AND TO COLLAPSE THE TRUNKING TO THE FORE AND AFT BALLONETS, RENDERING THE AIRSHIP UNCONTROLLABLE. FACTORS RELATED TO…

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19940911026099A](https://openairdocs.org/incident/19940911026099A), Sep 11, 1994: Wdl WDL1 (N317TW), Farmingdale, NY, Substantial damage. Lost air pressure on climbout. Tried land on residential street. Center damper valve left open by maintenance.

## Other aircraft with N317TW

- [Registered now](https://openairdocs.org/aircraft/N317TW): Piper PA-28-181, S/N 28020141, built 2023

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