# NTSB investigations, MD: Unknown

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ERA10TA142](https://openairdocs.org/ntsb/ERA10TA142.md): Eurocopter AS 365 N2 Dauphin · Cheverly, MD · Accident · No injuries · Final report · Feb 12, 2010 · N61MD · Substantial damage
  > Incomplete clearing of snow from the helipad and vicinity. Contributing to the accident was the lack of a NOTAM regarding the presence of snow banks and the pilot's failure to ensure that the helicopter was clear of a snow bank prior to departure.
- [NTSB NYC02LA019](https://openairdocs.org/ntsb/NYC02LA019.md): Norton/Cloeren Titan Tornado II · New Windsor, MD · Accident · 2 fatal · Limited investigation · Final report · Oct 30, 2001 · N996T · Destroyed
  > Loss of power for an undetermined reason.
- [NTSB NYC92FIG01](https://openairdocs.org/ntsb/NYC92FIG01.md): Tierra II · Williamsport, MD · Accident · 1 fatal · Final report · Jun 28, 1992 · N531PJ · Destroyed
  > The pilot's alcoholic impairment of efficiency and judgement resulting in a loss of control of the airplane during a forced landing following a power loss for an undetermined reason.
- [NTSB BFO92TA#01](https://openairdocs.org/ntsb/BFO92TA%2301.md): Mcdonnell Douglas 369E · Clinton, MD · Accident · No injuries · Final report · Feb 12, 1992 · N1600Q · Substantial damage
- [NTSB BFO92FA010](https://openairdocs.org/ntsb/BFO92FA010.md): Piper PA-28-140 · Chesapeake Bay, MD · Accident · 1 fatal · Field investigation · Final report · Oct 5, 1991 · N55657 · Destroyed
  > Undetermined. The aircraft wreckage has not been located.
- [NTSB BFO88FA003](https://openairdocs.org/ntsb/BFO88FA003.md): Cessna 172H · Indian Head, MD · Accident · 1 fatal · Field investigation · Final report · Oct 16, 1987 · N9WB · Destroyed
  > The non-certificated plt took the acft without proper authority. A note was found in his automobile that showed he intended to commit suicide. A revolver was found at the crash scene with a spent cartridge under the hammer. Postmortem studies showed the pilot…
- [NTSB DCA83AA025](https://openairdocs.org/ntsb/DCA83AA025.md): Piper PA-23 · Gaithersburg, MD · Accident · 3 fatal · Final report · May 7, 1983 · N1236P · Destroyed
  > The owner/plt was on a flt, accompanied by two nephews, ages 19 & 8 yrs old. An associate of the owner/plt reported that the 19 yr old nephew, who occupied the right front seat, was a single eng plt, but had no multi-eng instruction. However, no FAA records…
- [NTSB ATL83FA049](https://openairdocs.org/ntsb/ATL83FA049.md): Piper PA-24-250 · Ocean City, MD · Accident · 2 fatal · Field investigation · Final report · Dec 2, 1982 · N5284P
  > The pilot and passenger bodies were recovered from the atlantic Ocean near Ocean City, MD. Both persons had died of drowning without serious traumatic injuries. The aircraft was not recovered. Low ceilings and visibilities were reportedin the area throughout…
- [NTSB IAD80FA071](https://openairdocs.org/ntsb/IAD80FA071.md): Hughes 500 · Stephensville, MD · Accident · 2 fatal · Closed · Mar 24, 1980 · N2769 · Destroyed
- [NTSB IAD78DA042](https://openairdocs.org/ntsb/IAD78DA042.md): Stinson 108 · Ocean City, MD · Accident · 1 fatal · Closed · Jan 27, 1978 · N8980K · Destroyed
- [NTSB DIA69A0010](https://openairdocs.org/ntsb/DIA69A0010.md): Cessna 172C · Rock Hall, MD · Accident · 2 fatal · Closed · Aug 23, 1968 · N1505Y · Destroyed

## The whole list in SQL

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

```sql
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
  crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
  current_codes AS (
    SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
      row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
    FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
    WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
      AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
  ),
  phases AS (
    SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
    FROM current_codes WHERE n = 1
    UNION ALL
    SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
    FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
    WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
  ),
  case_phases AS (
    SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
    FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
    LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
    WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
  )
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MD' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 990)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/990/cases?state=MD

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.