# NTSB investigations, WA: 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 1 of 2 · 59 cases

## Latest cases

- [NTSB SEA90LA157](https://openairdocs.org/ntsb/SEA90LA157.md): Robinson R22 · Ellensburg, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 9, 1990 · N9072N · Substantial damage
  > The pilot did not adequately level off the helicopter and collided with the terrain.
- [NTSB SEA82FA007](https://openairdocs.org/ntsb/SEA82FA007.md): Piper PA-28 · Longview, WA · Accident · 4 fatal · Closed · Nov 29, 1981 · N54440 · Destroyed
- [NTSB SEA81FA057](https://openairdocs.org/ntsb/SEA81FA057.md): Cessna 210A · Woodland, WA · Accident · 3 fatal · Closed · Sep 20, 1981 · N6653X · Destroyed
- [NTSB LAX81FA116](https://openairdocs.org/ntsb/LAX81FA116.md): Grum Amer AA-5B · Vancouver, WA · Accident · 1 fatal · Closed · Aug 13, 1981 · N1565R · Destroyed
- [NTSB SEA81FA020](https://openairdocs.org/ntsb/SEA81FA020.md): Cessna 182P · Everett, WA · Accident · 2 fatal · Closed · Mar 3, 1981 · N21002 · Destroyed
- [NTSB SEA81FA012](https://openairdocs.org/ntsb/SEA81FA012.md): Piper PA-34 · Stevenson, WA · Accident · 2 fatal · Closed · Dec 21, 1980 · N114PH · Destroyed
- [NTSB SEA81FA013](https://openairdocs.org/ntsb/SEA81FA013.md): Cessna 210 · Royal City, WA · Accident · 1 fatal · Closed · Dec 3, 1980 · N6508X · Destroyed
- [NTSB SEA81FA009](https://openairdocs.org/ntsb/SEA81FA009.md): Beech 58TC · Ellensburg, WA · Accident · 6 fatal · Closed · Nov 27, 1980 · N24AC · Destroyed
- [NTSB SEA80DYE32](https://openairdocs.org/ntsb/SEA80DYE32.md): Hiller Acft UH-12E · Forks, WA · Accident · Serious injuries · Closed · May 15, 1980 · N5359V · Destroyed
- [NTSB SEA79FYP04](https://openairdocs.org/ntsb/SEA79FYP04.md): Cessna R172K · Dayton, WA · Accident · 1 fatal · Closed · Dec 1, 1978 · N736TH · Destroyed
- [NTSB SEA79FA009](https://openairdocs.org/ntsb/SEA79FA009.md): Cessna P210 · Toutle, WA · Accident · 3 fatal · Closed · Nov 2, 1978 · N3686P · Destroyed
- [NTSB SEA78FA053](https://openairdocs.org/ntsb/SEA78FA053.md): Stinson 108E · Enumclaw, WA · Accident · 1 fatal · Closed · Aug 10, 1978 · N4122C · Destroyed
- [NTSB SEA78FA008](https://openairdocs.org/ntsb/SEA78FA008.md): Cessna 172M · Newport, WA · Accident · 4 fatal · Closed · Nov 13, 1977 · C-GSKO · Destroyed
- [NTSB SEA77FA049](https://openairdocs.org/ntsb/SEA77FA049.md): Cessna 185 · Hansville, WA · Accident · 4 fatal · Closed · Aug 21, 1977 · N1738R · Destroyed
- [NTSB SEA77FA027](https://openairdocs.org/ntsb/SEA77FA027.md): Cessna 182P · Port Orchard, WA · Accident · 3 fatal · Closed · Apr 10, 1977 · N1282S · Destroyed
- [NTSB SEA77FA019](https://openairdocs.org/ntsb/SEA77FA019.md): Piper PA-28R · Port Orchard, WA · Accident · 1 fatal · Closed · Feb 12, 1977 · N1529X · Substantial damage
- [NTSB SEA77FA012](https://openairdocs.org/ntsb/SEA77FA012.md): Beech C35 · Mckenna, WA · Accident · 3 fatal · Closed · Jan 14, 1977 · N859M · Destroyed
- [NTSB SEA76AS060](https://openairdocs.org/ntsb/SEA76AS060.md): Piper PA-22 · Hoquiam, WA · Accident · 3 fatal · Closed · Jul 3, 1976 · N9344D · Destroyed
- [NTSB SEA76FYE22](https://openairdocs.org/ntsb/SEA76FYE22.md): Cessna 172 · Lummi Island, WA · Accident · Serious injuries · Closed · Dec 14, 1975 · N9613Q · Substantial damage
- [NTSB SEA76AS020](https://openairdocs.org/ntsb/SEA76AS020.md): Piper PA-24 · Woodland, WA · Accident · 2 fatal · Closed · Oct 14, 1975 · N6680P · Destroyed
- [NTSB SEA76DYE07](https://openairdocs.org/ntsb/SEA76DYE07-149983.md): Hiller Acft FH1100 · Shelton, WA · Accident · No injuries · Closed · Aug 8, 1975 · N5060F · Substantial damage
- [NTSB SEA75AS026](https://openairdocs.org/ntsb/SEA75AS026.md): Cessna TU206D · Palmer, WA · Accident · 3 fatal · Closed · Jan 5, 1975 · N71972 · Destroyed
- [NTSB SEA75AS022](https://openairdocs.org/ntsb/SEA75AS022.md): Bell 47G-2 · Kingston, WA · Accident · 1 fatal · Closed · Nov 4, 1974 · N5160B · Destroyed
- [NTSB SEA74AS035](https://openairdocs.org/ntsb/SEA74AS035.md): Amer Avco AA1-B · Enumclaw, WA · Accident · 2 fatal · Closed · Mar 3, 1974 · N6213L · Destroyed
- [NTSB SEA74FYE31](https://openairdocs.org/ntsb/SEA74FYE31.md): Cessna 337A · Maynard, WA · Accident · Serious injuries · Closed · Dec 11, 1973 · N5313S · Destroyed
- [NTSB SEA74AS003](https://openairdocs.org/ntsb/SEA74AS003.md): Cessna 175 · Neah Bay, WA · Accident · 2 fatal · Closed · Jul 18, 1973 · N7310M · Destroyed
- [NTSB SEA73AS026](https://openairdocs.org/ntsb/SEA73AS026.md): N.American T-28A · Gorst, WA · Accident · 2 fatal · Closed · Mar 24, 1973 · N2800N · Destroyed
- [NTSB SEA73AS025](https://openairdocs.org/ntsb/SEA73AS025.md): Aero Comdr 680F · Battle Grnd, WA · Accident · 3 fatal · Closed · Feb 17, 1973 · N69HE · Destroyed
- [NTSB SEA73ASO13](https://openairdocs.org/ntsb/SEA73ASO13.md): Luscombe 8A · Ellensburg, WA · Accident · 1 fatal · Closed · Nov 28, 1972 · N1170B · Destroyed
- [NTSB SEA73AS007](https://openairdocs.org/ntsb/SEA73AS007.md): Beech D55 · Mansfield, WA · Accident · 2 fatal · Closed · Sep 24, 1972 · N7705R · Destroyed
- [NTSB SEA73AS005](https://openairdocs.org/ntsb/SEA73AS005.md): Piper PA-32 · Ryderwood, WA · Accident · 5 fatal · Closed · Sep 8, 1972 · N3600W · Destroyed
- [NTSB SEA73DYG05](https://openairdocs.org/ntsb/SEA73DYG05.md): Piper PA-11 · Wapato, WA · Accident · Minor injuries · Closed · Jul 20, 1972 · N4930H · Substantial damage
- [NTSB SEA72DYE39](https://openairdocs.org/ntsb/SEA72DYE39.md): Cessna 182J · Olympia, WA · Accident · No injuries · Closed · Jun 11, 1972 · N2626F · Substantial damage
- [NTSB SEA72AS048](https://openairdocs.org/ntsb/SEA72AS048.md): Bellanca 17-31A · Onalaska, WA · Accident · 3 fatal · Closed · Apr 28, 1972 · N6581V · Destroyed
- [NTSB SEA72AS027](https://openairdocs.org/ntsb/SEA72AS027.md): Cessna 150G · Kalama, WA · Accident · 1 fatal · Closed · Dec 31, 1971 · N2257J · Destroyed
- [NTSB SEA72AS009](https://openairdocs.org/ntsb/SEA72AS009.md): Stinson 108-2 · Port Angeles, WA · Accident · 2 fatal · Closed · Sep 3, 1971 · N890D · Destroyed
- [NTSB SEA71AS033](https://openairdocs.org/ntsb/SEA71AS033.md): Aero Comdr 500 · Carson, WA · Accident · 1 fatal · Closed · Jan 9, 1971 · N8473C · Destroyed
- [NTSB SEA71DWG11](https://openairdocs.org/ntsb/SEA71DWG11.md): Bell 47G-2 · Manson, WA · Accident · No injuries · Closed · Aug 6, 1970 · N1657 · Substantial damage
- [NTSB SEA71AS006](https://openairdocs.org/ntsb/SEA71AS006.md): Cessna 172K · Westport, WA · Accident · 4 fatal · Closed · Jul 31, 1970 · N84845 · Destroyed
- [NTSB SEA79FA059](https://openairdocs.org/ntsb/SEA79FA059.md): Cessna 140 · Lester, WA · Accident · 1 fatal · Closed · Nov 2, 1969 · N2050N · Destroyed
- [NTSB SEA70A0002](https://openairdocs.org/ntsb/SEA70A0002.md): Globe GC-1B · Winlock, WA · Accident · 2 fatal · Closed · Jul 10, 1969 · N78155 · Destroyed
- [NTSB OAK70A0002](https://openairdocs.org/ntsb/OAK70A0002.md): Cessna 206 · Hyak, WA · Accident · 3 fatal · Closed · Apr 29, 1969 · N8714Z · Destroyed
- [NTSB SEA69D0164](https://openairdocs.org/ntsb/SEA69D0164.md): Piper PA-28 · Duvall, WA · Accident · Minor injuries · Closed · Dec 6, 1968 · N9347W · Destroyed
- [NTSB SEA69A0031](https://openairdocs.org/ntsb/SEA69A0031.md): Cessna 150J · Ralston, WA · Accident · 1 fatal · Closed · Nov 24, 1968 · N50598 · Destroyed
- [NTSB SEA69A0026](https://openairdocs.org/ntsb/SEA69A0026.md): Stinson 108 · Vancouver, WA · Accident · 2 fatal · Closed · Nov 10, 1968 · N422C · Destroyed
- [NTSB SEA69F0129](https://openairdocs.org/ntsb/SEA69F0129.md): Hughes 269A · Renton, WA · Accident · No injuries · Closed · Oct 29, 1968 · N8772F · Destroyed
- [NTSB SEA69A0016](https://openairdocs.org/ntsb/SEA69A0016.md): Erco 415-D · Packwood, WA · Accident · 2 fatal · Closed · Aug 26, 1968 · N2505H · Destroyed
- [NTSB SEA68A0053](https://openairdocs.org/ntsb/SEA68A0053.md): Cessna T-210F · Lamont, WA · Accident · 2 fatal · Closed · Feb 19, 1968 · N6792R · Destroyed
- [NTSB SEA68A0029](https://openairdocs.org/ntsb/SEA68A0029.md): Cessna T-210F · Gardiner, WA · Accident · 2 fatal · Closed · Sep 29, 1967 · CF-UDD · Destroyed
- [NTSB SEA68A0025](https://openairdocs.org/ntsb/SEA68A0025.md): Cessna 180H · Ilwaco, WA · Accident · 2 fatal · Closed · Sep 8, 1967 · N2787X · Destroyed

Next page: https://openairdocs.org/ntsb-phases/650/cases.md?state=WA&page=2

## 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" = 'WA' AND c."eventCountry" = 'USA'
  AND 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?state=WA

---
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.