# 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 14 of 44 · 2,192 cases

## Cases, newest first

- [NTSB FTW77FA028](https://openairdocs.org/ntsb/FTW77FA028.md): Bolkow BO105C · Morgan City, LA · Accident · 1 fatal · Closed · Jan 6, 1977 · N200BB · Substantial damage
- [NTSB ANC77FA019](https://openairdocs.org/ntsb/ANC77FA019.md): Piper PA-18 · Kaktovik, AK · Accident · 1 fatal · Closed · Jan 2, 1977 · N7199Z · Substantial damage
- [NTSB LAX77FA018](https://openairdocs.org/ntsb/LAX77FA018.md): Beech 95-B55 · Barstow, CA · Accident · 4 fatal · Closed · Dec 31, 1976 · N4635S · Destroyed
- [NTSB MIA77FA020](https://openairdocs.org/ntsb/MIA77FA020.md): Beech B95A · Panacea, FL · Accident · 3 fatal · Closed · Dec 25, 1976 · N22RL · Destroyed
- [NTSB CHI77FA018](https://openairdocs.org/ntsb/CHI77FA018.md): Piper PA-28 · Columbia City, IN · Accident · 3 fatal · Closed · Dec 25, 1976 · N1510J · Destroyed
- [NTSB OAK77FA009](https://openairdocs.org/ntsb/OAK77FA009.md): Cessna 172M · Empire, NV · Accident · 1 fatal · Closed · Dec 22, 1976 · N12364 · Destroyed
- [NTSB DEN77FA015](https://openairdocs.org/ntsb/DEN77FA015.md): Grum Amer AA-1 · Alder, CO · Accident · 3 fatal · Closed · Dec 19, 1976 · N5679L · Destroyed
- [NTSB CHI77FA016](https://openairdocs.org/ntsb/CHI77FA016.md): Erco 415-C · Palo, MI · Accident · 1 fatal · Closed · Dec 19, 1976 · N99258 · Destroyed
- [NTSB IAD77FID08](https://openairdocs.org/ntsb/IAD77FID08.md): Cessna 172 · Richmond, VA · Accident · No injuries · Closed · Dec 16, 1976 · N4291L · Substantial damage
- [NTSB DEN77FA019](https://openairdocs.org/ntsb/DEN77FA019.md): Sikorsky S-64E · Cowdrey, CO · Accident · Serious injuries · Closed · Dec 13, 1976 · N6965R · Substantial damage
- [NTSB CHI77FA014](https://openairdocs.org/ntsb/CHI77FA014.md): Cessna 172M · Vandalia, IL · Accident · 3 fatal · Closed · Dec 11, 1976 · N64024 · Destroyed
- [NTSB CHI77FA011](https://openairdocs.org/ntsb/CHI77FA011.md): Cessna 195 · Roanoke, IN · Accident · 1 fatal · Closed · Dec 10, 1976 · N169CB · Destroyed
- [NTSB MIA77FA016](https://openairdocs.org/ntsb/MIA77FA016.md): Piper PA-23 · Clewiston, FL · Accident · 5 fatal · Closed · Dec 6, 1976 · N4240P · Destroyed
- [NTSB MKC77FA007](https://openairdocs.org/ntsb/MKC77FA007.md): Piper PA-24 · Kimball, NE · Accident · 3 fatal · Closed · Dec 5, 1976 · N6973P · Destroyed
- [NTSB MIA77DA015](https://openairdocs.org/ntsb/MIA77DA015.md): Cessna 337G · Summer Haven, FL · Accident · 2 fatal · Closed · Dec 1, 1976 · N72459 · Destroyed
- [NTSB IAD77FA015](https://openairdocs.org/ntsb/IAD77FA015.md): Cessna 210 · Oxford, NC · Accident · 4 fatal · Closed · Nov 28, 1976 · N360WL · Destroyed
- [NTSB MIA77FA013](https://openairdocs.org/ntsb/MIA77FA013.md): Piper PA-28R · Tallahassee, FL · Accident · 2 fatal · Closed · Nov 27, 1976 · N4615J · Destroyed
- [NTSB DEN77FA012](https://openairdocs.org/ntsb/DEN77FA012.md): Piper PA-28 · Farmington, NM · Accident · 2 fatal · Closed · Nov 26, 1976 · N4208F · Destroyed
- [NTSB FTW77FA017](https://openairdocs.org/ntsb/FTW77FA017.md): Erco 415-C · Little Rock, AR · Accident · 1 fatal · Closed · Nov 25, 1976 · N99324 · Destroyed
- [NTSB NYC77FA014](https://openairdocs.org/ntsb/NYC77FA014.md): Cessna 172M · Conneautville, PA · Accident · 1 fatal · Closed · Nov 20, 1976 · N80778 · Destroyed
- [NTSB MIA76FA008](https://openairdocs.org/ntsb/MIA76FA008.md): Cessna 150L · Orlando, FL · Accident · 1 fatal · Closed · Nov 16, 1976 · N7511G · Destroyed
- [NTSB NYC77FA012](https://openairdocs.org/ntsb/NYC77FA012.md): Piper PA-22 · Warren Center, PA · Accident · 1 fatal · Closed · Nov 12, 1976 · N973A · Destroyed
- [NTSB IAD77FA012](https://openairdocs.org/ntsb/IAD77FA012.md): Piper PA-28 · Wise, NC · Accident · 4 fatal · Closed · Nov 12, 1976 · N2693T · Destroyed
- [NTSB SEA77FA005](https://openairdocs.org/ntsb/SEA77FA005.md): Cessna 172 · Pendleton, OR · Accident · 2 fatal · Closed · Nov 9, 1976 · N5789A · Destroyed
- [NTSB LAX77FA005](https://openairdocs.org/ntsb/LAX77FA005.md): Cessna U206 · Joseph City, AZ · Accident · 1 fatal · Closed · Oct 27, 1976 · N3945G · Destroyed
- [NTSB DEN77FA004](https://openairdocs.org/ntsb/DEN77FA004.md): Piper PA-32R · Matheson, CO · Accident · 1 fatal · Closed · Oct 27, 1976 · N9705K · Destroyed
- [NTSB OAK77FA003](https://openairdocs.org/ntsb/OAK77FA003.md): Beech A36 · Coalinga, CA · Accident · 1 fatal · Closed · Oct 23, 1976 · N7317R · Destroyed
- [NTSB FTW77FA008](https://openairdocs.org/ntsb/FTW77FA008.md): Cessna 182L · Shaw, LA · Accident · 2 fatal · Closed · Oct 23, 1976 · N42213 · Destroyed
- [NTSB MKC77FER03](https://openairdocs.org/ntsb/MKC77FER03.md): Piper PA-28 · Rochester, MN · Accident · Serious injuries · Closed · Oct 20, 1976 · N56091 · Substantial damage
- [NTSB CHI76FA003](https://openairdocs.org/ntsb/CHI76FA003.md): Cessna 150M · Amherst, WI · Accident · 1 fatal · Closed · Oct 20, 1976 · N704PN · Destroyed
- [NTSB NYC77FA005](https://openairdocs.org/ntsb/NYC77FA005.md): Piper PA-28 · Frenchville, PA · Accident · 1 fatal · Closed · Oct 17, 1976 · N4189J · Destroyed
- [NTSB FTW77FA004](https://openairdocs.org/ntsb/FTW77FA004.md): Piper PA-23 · College Sta, TX · Accident · 4 fatal · Closed · Oct 16, 1976 · N1434P · Destroyed
- [NTSB FTW77FA007](https://openairdocs.org/ntsb/FTW77FA007.md): Bellanca 17-30 · Seguin, TX · Accident · 1 fatal · Closed · Oct 15, 1976 · N4819V · Destroyed
- [NTSB CHI77FA002](https://openairdocs.org/ntsb/CHI77FA002.md): Cessna 177B · Manteno, IL · Accident · 1 fatal · Closed · Oct 3, 1976 · N34434 · Destroyed
- [NTSB MKC76AK084](https://openairdocs.org/ntsb/MKC76AK084.md): Beech P35 · Red Wing, MN · Accident · 1 fatal · Closed · Sep 26, 1976 · N1584Z · Destroyed
- [NTSB FTW76AF126](https://openairdocs.org/ntsb/FTW76AF126.md): Piper PA-28 · Greenfield, OK · Accident · 1 fatal · Closed · Sep 26, 1976 · N55481 · Destroyed
- [NTSB CHI76AC093](https://openairdocs.org/ntsb/CHI76AC093.md): Cessna T210L · Peoria, IL · Accident · 3 fatal · Closed · Sep 26, 1976 · N732AB · Destroyed
- [NTSB FTW76FPM30](https://openairdocs.org/ntsb/FTW76FPM30.md): Hughes 269C · Vinita, OK · Accident · Serious injuries · Closed · Sep 25, 1976 · N7453F · Destroyed
- [NTSB SEA76AS078](https://openairdocs.org/ntsb/SEA76AS078.md): Piper PA-18 · Zurich, MT · Accident · 1 fatal · Closed · Sep 24, 1976 · N8966C · Destroyed
- [NTSB CHI77AC095](https://openairdocs.org/ntsb/CHI77AC095.md): Beech 95 · L'Anse, MI · Accident · 2 fatal · Closed · Sep 20, 1976 · N2080C · Destroyed
- [NTSB FTW76AF124](https://openairdocs.org/ntsb/FTW76AF124.md): Bellanca 17-30 · Eagletown, OK · Accident · 1 fatal · Closed · Sep 18, 1976 · N4885V · Destroyed
- [NTSB OAK76AP070](https://openairdocs.org/ntsb/OAK76AP070.md): Piper PA-24 · Trinity Center, CA · Accident · 4 fatal · Closed · Sep 15, 1976 · N7614P · Destroyed
- [NTSB DEN76AD071](https://openairdocs.org/ntsb/DEN76AD071.md): Piper PA-28 · Scholle, NM · Accident · 2 fatal · Closed · Sep 10, 1976 · N8981W · Destroyed
- [NTSB MIA76AM107](https://openairdocs.org/ntsb/MIA76AM107.md): Cessna T210G · Brantley, AL · Accident · 3 fatal · Closed · Sep 4, 1976 · N6826R · Destroyed
- [NTSB FTW76AF119](https://openairdocs.org/ntsb/FTW76AF119.md): Cessna P206 · Shamrock, TX · Accident · 4 fatal · Closed · Aug 30, 1976 · N2580X · Destroyed
- [NTSB OAK76DVD51](https://openairdocs.org/ntsb/OAK76DVD51.md): Flying Flea HM297 · Tracy, CA · Accident · 1 fatal · Closed · Aug 26, 1976 · N7196 · Destroyed
- [NTSB LAX76FUG70](https://openairdocs.org/ntsb/LAX76FUG70.md): Cessna 150K · Wrightwood, CA · Accident · Serious injuries · Closed · Aug 26, 1976 · N6200G · Destroyed
- [NTSB SEA76AS073](https://openairdocs.org/ntsb/SEA76AS073.md): Cessna TU206E · Salmon, ID · Accident · 1 fatal · Closed · Aug 25, 1976 · N1383M · Destroyed
- [NTSB FTW76AF115](https://openairdocs.org/ntsb/FTW76AF115.md): Cessna 182L · Mullin, TX · Accident · 4 fatal · Closed · Aug 19, 1976 · N42216 · Destroyed
- [NTSB CHI76AC086](https://openairdocs.org/ntsb/CHI76AC086.md): Cessna 207 · East Troy, WI · Accident · 2 fatal · Closed · Aug 17, 1976 · N91061 · Destroyed

Next page: https://openairdocs.org/ntsb-phases/650/cases.md?page=15

## 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=14

---
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.