# NTSB ERA21LA221: Cessna T337G, N2QD, Patuxent River, MD, March 22, 2021

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: March 22, 2021, 16:00 local (20:00 UTC)
- Place: Patuxent River, MD
- Coordinates: 38.281838, -76.414445 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.2818&lon=-76.4144&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Eastern Region Aviation
- Parties: FAA/FSDO
- NTSB case key (mKey): 103114
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA21LA221
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103114/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103114
- Page: https://openairdocs.org/ntsb/ERA21LA221

## Probable cause

The pilot’s failure to extend the landing gear during approach, which resulted in a gear up landing.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Landing gear system: gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230): Aircraft › Aircraft systems · Not used/operated (probable cause); cases with it: [Cessna T337G, 1 case](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=2075726), [All aircraft, 416 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md)
- [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna T337G, 2 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=2075726), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Cessna T337G, 3 cases](https://openairdocs.org/ntsb-events/095/sequence.md?model=2075726), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md)

## Analysis

At the conclusion of the flight the pilot approached the runway for landing, and it wasn’t until the airplane touched down on the runway that he realized the landing gear was retracted. The airplane’s fuselage was substantially damaged. A post-accident test of the airplane’s landing gear system revealed that the landing position gear warning horn, landing gear position indicator lights, and landing gear operated without anomalies.

## Aircraft

- Registration: [N2QD](https://openairdocs.org/aircraft/N2QD), registered now, S/N P3370277 (OpenAirDocs)
- Reported make and model: CESSNA T337G
- Registry model: [Cessna T337G](https://openairdocs.org/model/cessna-t337g) (registry code 2075726) (OpenAirDocs)
- Category: Airplane
- Serial number: P3370277
- Year built: 1977
- Airframe hours: 3396.8
- Engines: Continental TSIO-360CB 225 horsepower reciprocating; Continental TSIO-360C 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Spectraq
- Registered owner: Spectraq
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 25, 2021
- Departed: 2W6, Leonardtown, MD
- Destination: Same as departure
- Airport: NHK, Patuxent River Nas/Trapnell Fld, runway 06/24, 11,799 × 200 ft, asphalt
- Equipment: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; injuries: none; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review September 20, 2020; seat: left; flight hours: 1,971 total, 411 in this make and model, 58 in the last 90 days, 58 in the last 30 days
- Flight engineer; seat: right

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 45 °F
- Altimeter: 30.26 inHg
- Observed at: NHK, 1 nm away
- METAR: SPECI KNHK 222013Z 03008KT 10SM FEW050 18/07 A3026 RMK AO2 T01780067 $=

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20210322009179A](https://openairdocs.org/incident/20210322009179A), Mar 22, 2021: Cessna T337G, Patuxent River, MD, Substantial damage. On 03/22/2021, while performing a landing at Nas Patuxent River (knhk), at approximately 1553HRS local, N2QD suffered a gear-up landing, no injuries were…

## Docket (5 files)

The files NTSB released with the investigation on August 10, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103114. 21.3 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 - memorandum (item 1, PDF, 1 page, 113 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12326841&FileExtension=pdf&FileName=6120%20Gathered%20through%20other%20means%20memo%20LA221-Rel.pdf
- Investigative photographs (item 2, PDF, 3 pages, 3 photos, 3.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12327118&FileExtension=pdf&FileName=Photo%20Array%20LA221-Rel.pdf
- Maintenance records excerpts (item 3, PDF, 15 pages, 17.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12327689&FileExtension=pdf&FileName=ac%20logs_Redacted-Rel.pdf
- Memorandum for record - airplane landing gear system examination (item 4, PDF, 1 page, 219 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12333660&FileExtension=pdf&FileName=Memorandum%20Of%20Record%20Color%20BR%20with%20Mechanic-Rel.pdf
- Accident timeline (item 5, PDF, 3 pages, 89 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12327573&FileExtension=pdf&FileName=Unexpected%20Event%20Form%20Timeline%20Attachment-Rel.pdf

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.

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