# NTSB investigations: Uncontrolled descent

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.

Page 39 of 44 · 2,192 cases

## Cases, newest first

- [NTSB DEN67A0020](https://openairdocs.org/ntsb/DEN67A0020.md): Beech J35 · Watkins, CO · Accident · 2 fatal · Closed · Sep 15, 1966 · N7225B · Destroyed
- [NTSB CHI67A0026](https://openairdocs.org/ntsb/CHI67A0026.md): Piper PA-24 · New Lexingtn, OH · Accident · 2 fatal · Closed · Aug 22, 1966 · N7859P · Destroyed
- [NTSB NYC67A0036](https://openairdocs.org/ntsb/NYC67A0036.md): Beech G35 · Farmersvll Sta., NY · Accident · 2 fatal · Closed · Aug 21, 1966 · N4205D · Destroyed
- [NTSB MKC67A0014](https://openairdocs.org/ntsb/MKC67A0014.md): Wittman 11E · Glenwood, IA · Accident · 2 fatal · Closed · Aug 21, 1966 · N211S · Destroyed
- [NTSB ANC67A0023](https://openairdocs.org/ntsb/ANC67A0023.md): Grumman G-21A · Juneau, AK · Accident · 9 fatal · Closed · Aug 21, 1966 · N88820 · Destroyed
- [NTSB MKC67A0011](https://openairdocs.org/ntsb/MKC67A0011.md): Cessna 150E · Smithville, MO · Accident · 2 fatal · Closed · Aug 14, 1966 · N6188T · Destroyed
- [NTSB MIA67A0024](https://openairdocs.org/ntsb/MIA67A0024.md): Cessna 172 · Flamingo, FL · Accident · 3 fatal · Closed · Aug 12, 1966 · N6484E · Destroyed
- [NTSB LAX67A0018](https://openairdocs.org/ntsb/LAX67A0018.md): Cessna 150A · S.Catalina Is., CA · Accident · 1 fatal · Closed · Aug 9, 1966 · N7160X · Destroyed
- [NTSB ANC67A0015](https://openairdocs.org/ntsb/ANC67A0015.md): Beech V35 · Northway, AK · Accident · 5 fatal · Closed · Aug 9, 1966 · N9413S · Destroyed
- [NTSB SEA67F0156](https://openairdocs.org/ntsb/SEA67F0156.md): Interstate S-1A · Pt.Townsend, WA · Accident · Serious injuries · Closed · Aug 7, 1966 · N37236 · Destroyed
- [NTSB SEA67A0009](https://openairdocs.org/ntsb/SEA67A0009.md): Piper PA-22 · Seaside, OR · Accident · 2 fatal · Closed · Aug 7, 1966 · N7629D · Destroyed
- [NTSB OAK67A0019](https://openairdocs.org/ntsb/OAK67A0019.md): Cessna 175 · Kailua, HI · Accident · 3 fatal · Closed · Aug 6, 1966 · N8058T · Destroyed
- [NTSB SEA67F0101](https://openairdocs.org/ntsb/SEA67F0101.md): Schweizer 1-26B · Ketchum, ID · Accident · Serious injuries · Closed · Aug 5, 1966 · N2763R · Substantial damage
- [NTSB MKC67A0010](https://openairdocs.org/ntsb/MKC67A0010.md): Piper PA-20 · Kingsdown, KS · Accident · 2 fatal · Closed · Aug 5, 1966 · N7602K · Destroyed
- [NTSB MKC67A0009](https://openairdocs.org/ntsb/MKC67A0009.md): Piper PA-24 · Hunter, KS · Accident · 4 fatal · Closed · Aug 5, 1966 · N6161P · Destroyed
- [NTSB MIA67A0054](https://openairdocs.org/ntsb/MIA67A0054.md): Mooney M20C · Roan Mountn, TN · Accident · 1 fatal · Closed · Jul 30, 1966 · N6054Q · Destroyed
- [NTSB MKC67F0170](https://openairdocs.org/ntsb/MKC67F0170.md): Boeing A75 · Lexington, NE · Accident · 1 fatal · Closed · Jul 28, 1966 · N63911 · Destroyed
- [NTSB SEA67F0078](https://openairdocs.org/ntsb/SEA67F0078.md): Luscombe 8A · Chinook, MT · Accident · 1 fatal · Closed · Jul 27, 1966 · N2978K · Destroyed
- [NTSB MIA67A0012](https://openairdocs.org/ntsb/MIA67A0012.md): Cessna P206A · Opa Locka, FL · Accident · 3 fatal · Closed · Jul 22, 1966 · N2676X · Destroyed
- [NTSB NYC67A0015](https://openairdocs.org/ntsb/NYC67A0015.md): Piper PA-22 · E Taunton, MA · Accident · 1 fatal · Closed · Jul 16, 1966 · N5638Z · Destroyed
- [NTSB UNK66X0156](https://openairdocs.org/ntsb/UNK66X0156.md): Bell 47G-5 · Episkopi, Greece · Accident · No injuries · Closed · Jul 12, 1966 · N8574F · Destroyed
- [NTSB MIA67A0001](https://openairdocs.org/ntsb/MIA67A0001.md): Cessna 150E · Dania, FL · Accident · 2 fatal · Closed · Jul 4, 1966 · N2585J · Destroyed
- [NTSB OAK67A0001](https://openairdocs.org/ntsb/OAK67A0001.md): Hughes 269B · Oaklnd Arpt, CA · Accident · 2 fatal · Closed · Jul 1, 1966 · N9378F · Destroyed
- [NTSB CHI66A0102](https://openairdocs.org/ntsb/CHI66A0102.md): Aero Comdr 200D · Chicago, IL · Accident · 4 fatal · Closed · Jun 29, 1966 · N2911T · Destroyed
- [NTSB NYC66A0153](https://openairdocs.org/ntsb/NYC66A0153.md): Bell 47G-2A · Cranbury, NJ · Accident · Minor injuries · Closed · Jun 19, 1966 · N8458E · Substantial damage
- [NTSB MKC66A0066](https://openairdocs.org/ntsb/MKC66A0066.md): Brantly B-2 · N.Platte, NE · Accident · No injuries · Closed · Jun 16, 1966 · N2131U · Substantial damage
- [NTSB CHI66A0098](https://openairdocs.org/ntsb/CHI66A0098.md): Piper PA-24 · Alexis, IL · Accident · 6 fatal · Closed · Jun 15, 1966 · N8929P · Destroyed
- [NTSB LAX66F0385](https://openairdocs.org/ntsb/LAX66F0385.md): Navion G · Redlands, CA · Accident · Minor injuries · Closed · Jun 4, 1966 · N2497T · Destroyed
- [NTSB DEN66A0087](https://openairdocs.org/ntsb/DEN66A0087.md): Piper PA-22 · Weston, CO · Accident · 1 fatal · Closed · May 31, 1966 · N2559P · Destroyed
- [NTSB LAX66A0094](https://openairdocs.org/ntsb/LAX66A0094.md): Beech B35 · San L.Obispo, CA · Accident · 2 fatal · Closed · May 28, 1966 · N5190C · Destroyed
- [NTSB MKC66A0062](https://openairdocs.org/ntsb/MKC66A0062.md): Cessna 182 · Hyannis, NE · Accident · 1 fatal · Closed · May 27, 1966 · N3215U · Destroyed
- [NTSB MIA66A0137](https://openairdocs.org/ntsb/MIA66A0137.md): Cessna 150 · Lake City, FL · Accident · 2 fatal · Closed · May 25, 1966 · N8701G · Destroyed
- [NTSB SEA67D0024](https://openairdocs.org/ntsb/SEA67D0024.md): Piper PA-28 · Big Springs, ID · Accident · Serious injuries · Closed · May 14, 1966 · N8108W · Destroyed
- [NTSB CHI66A0089](https://openairdocs.org/ntsb/CHI66A0089.md): Piper PA-22 · Morocco, IN · Accident · 1 fatal · Closed · May 12, 1966 · N3208Z · Destroyed
- [NTSB CHI66A0088](https://openairdocs.org/ntsb/CHI66A0088.md): Cessna 182H · Robins, OH · Accident · 2 fatal · Closed · May 8, 1966 · N2457X · Destroyed
- [NTSB SEA66A0054](https://openairdocs.org/ntsb/SEA66A0054.md): Piper PA-16 · Sutherlin, OR · Accident · 1 fatal · Closed · May 6, 1966 · N5744H · Destroyed
- [NTSB LAX66A0082](https://openairdocs.org/ntsb/LAX66A0082.md): Cessna 150F · Santa Ana, CA · Accident · 1 fatal · Closed · May 4, 1966 · N8258S · Destroyed
- [NTSB MKC66A0056](https://openairdocs.org/ntsb/MKC66A0056.md): Piper PA-22 · Elk City, OK · Accident · 1 fatal · Closed · Apr 29, 1966 · N2802P · Destroyed
- [NTSB MKC66A0055](https://openairdocs.org/ntsb/MKC66A0055.md): Piper PA-23 · Winchester, AR · Accident · 1 fatal · Closed · Apr 28, 1966 · N4261P · Destroyed
- [NTSB MIA66A0126](https://openairdocs.org/ntsb/MIA66A0126.md): Goodyear Racer · St.Petersburg, FL · Accident · 1 fatal · Closed · Apr 28, 1966 · N84G · Destroyed
- [NTSB FTW66A0095](https://openairdocs.org/ntsb/FTW66A0095.md): Lear Jet 23 · Clarendon, TX · Accident · 2 fatal · Closed · Apr 23, 1966 · N235R · Destroyed
- [NTSB FTW66A0094](https://openairdocs.org/ntsb/FTW66A0094.md): Piper PA-28 · Gilmer, TX · Accident · 1 fatal · Closed · Apr 21, 1966 · N7651W · Destroyed
- [NTSB FTW66A0093](https://openairdocs.org/ntsb/FTW66A0093.md): Cessna 170 · Decatur, TX · Accident · 3 fatal · Closed · Apr 18, 1966 · N8112A · Destroyed
- [NTSB OAK66A0045](https://openairdocs.org/ntsb/OAK66A0045.md): Piper PA-22 · Gualala, CA · Accident · 2 fatal · Closed · Apr 10, 1966 · N8014D · Destroyed
- [NTSB NYC66A0112](https://openairdocs.org/ntsb/NYC66A0112.md): Cessna 172D · Princeton, WV · Accident · 2 fatal · Closed · Apr 5, 1966 · N2486U · Destroyed
- [NTSB CHI66A0082](https://openairdocs.org/ntsb/CHI66A0082.md): Piper PA-23 · Jackson, MI · Accident · 1 fatal · Closed · Apr 1, 1966 · N1118P · Destroyed
- [NTSB CHI66A0080](https://openairdocs.org/ntsb/CHI66A0080.md): Mooney MK 20C · Freeland, MI · Accident · 2 fatal · Closed · Mar 31, 1966 · N5647Q · Destroyed
- [NTSB LAX66F0290](https://openairdocs.org/ntsb/LAX66F0290.md): Cessna 206 · Hawthorne, NV · Accident · No injuries · Closed · Mar 29, 1966 · N5137U · Substantial damage
- [NTSB FTW66A0082](https://openairdocs.org/ntsb/FTW66A0082.md): Cessna 175A · Cabot, AR · Accident · 1 fatal · Closed · Mar 27, 1966 · N6934E · Destroyed
- [NTSB OAK66A0041](https://openairdocs.org/ntsb/OAK66A0041.md): Piper J4 · Healdsburg, CA · Accident · 2 fatal · Closed · Mar 25, 1966 · N26807 · Destroyed

Next page: https://openairdocs.org/ntsb-phases/650/cases.md?page=40

## 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."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 650)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/650/cases?page=39

---
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.