Aviation accidents in Unknown/Not Reported

The NTSB database holds 211 accidents and incidents in Unknown/Not Reported, recorded between 1964 to 1981. 205 of them were fatal (97%), and 440 people died.

The deadliest year was 1978, with 49 deaths.

The phase of flight recorded most often is unknown/not reported (194 records).

The aircraft types that appear most often are Cessna 172, Piper PA-28 and Cessna 150.

211 of these records have no coordinates in the source data, so they appear in the list below but not on the map.

211

Records

205

Fatal

440

Deaths

97%

Share fatal

1964 to 1981

Period

Show these on the map 0 of 211 have coordinates

By decade

1960s 56

1970s 134

1980s 21

Aircraft types involved

Cessna 172 18 Piper PA-28 16 Cessna 150 15 Piper PA-24 12 Piper PA-23 10 Cessna 182 8

Operators involved

United Air Lines, Inc. 2 Showalter Flyi 2 Isla Grande FL 2 San Juan Air I 1 Flight Trainin 1 Cousins Proper 1

All 211 records by number of deaths, then by date

Date	Aircraft	Location	Operator	Outcome	Died
25 Aug 1978	Grumman G-21A N1045	Laboucher Bay, Unknown/Not Reported no coordinates	Webber Airline	Fatal	12
27 Apr 1975	Piper PA-32 N294HA	Missing Aircraft, Unknown/Not Reported no coordinates	Merrimac Aviat	Fatal	7
28 Dec 1976	Piper PA-23 N4573P	Missing Aircraft, Unknown/Not Reported no coordinates	Valley Air SER	Fatal	6
13 Jul 1974	Piper PA-32 N83CA	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	6
29 Nov 1970	Cessna 172 N8443X	Missing Aircraft, Unknown/Not Reported no coordinates	GAM Corp.	Fatal	6
3 Jul 1970	Cessna 310G N1166T	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	6
29 Mar 1969	Piper PA-23 N6116Y	Missing Aircraft, Unknown/Not Reported no coordinates	Metropolitan A	Fatal	6
21 Feb 1980	Beechcraft A36 N3154W	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	5
13 Jan 1975	De Havilland DHC-2 N1944	Missing Aircraft, Unknown/Not Reported no coordinates	Channel Flying	Fatal	5
11 Dec 1974	Grumman G-21 N1583V	Missing Aircraft, Unknown/Not Reported no coordinates	Kodiak Airways, Inc.	Fatal	5
27 Jan 1971	Aero Comdr 1121A N400CP	Missing Aircraft, Unknown/Not Reported no coordinates	Cousins Proper	Fatal	5
2 Sep 1981	Cessna 180H N3498Y	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
17 Aug 1981	Cessna 180H N3424Y	Missing Aircraft, Unknown/Not Reported no coordinates	B&J Wholesale	Fatal	4
1 Aug 1981	Cessna 180 N4988E	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
18 Jul 1981	Cessna A185F N7607G	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
6 Jan 1981	Beechcraft C35 N5805C	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
12 Jan 1980	Piper PA-28 N9388J	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
21 Dec 1979	Piper PA-23 N1435P	Missing Aircraft, Unknown/Not Reported no coordinates	Caribbean Avia	Fatal	4
11 Dec 1979	Piper PA-24 N6171P	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
27 May 1979	Grumman TYPE30 N4451	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
24 Apr 1979	Piper PA-28R N7480J	Missing Aircraft, Unknown/Not Reported no coordinates	Flight Trainin	Fatal	4
3 Feb 1979	Piper PA-23 N1330P	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
20 Nov 1978	Piper PA-23 N54615	Missing Aircraft, Unknown/Not Reported no coordinates	Birds of Parad	Fatal	4
21 Sep 1978	Douglas DC-3 N407D	Missing Aircraft, Unknown/Not Reported no coordinates	Argosy Airline	Fatal	4
19 May 1978	Piper PA-28 N47910	Missing Aircraft, Unknown/Not Reported no coordinates	Showalter Flyi	Fatal	4
17 Sep 1977	Cessna 177RG N7531V	Missing Aircraft, Unknown/Not Reported no coordinates	Plymouth Aero	Fatal	4
6 Feb 1976	Bellanca 14-19 N9816B	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
30 Sep 1974	Grumman G-73 N2965	Missing Aircraft, Unknown/Not Reported no coordinates	U.s.dept Inter	Fatal	4
15 Feb 1974	Mooney M20 N1368	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
10 Aug 1973	Beechcraft S35 N7956K	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
16 Oct 1972	Cessna 310C N1812H	Missing Aircraft, Unknown/Not Reported no coordinates	Pan Alaska Air	Fatal	4
22 Jun 1971	Cessna 172 N3831S	Missing Aircraft, Unknown/Not Reported no coordinates	Willi Aero, Inc	Fatal	4
21 May 1969	Beechcraft 35 N3358V	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	4
22 Nov 1967	Piper PA-28 N9443J	Z, Unknown/Not Reported no coordinates	Anston Corp.	Fatal	4
8 Nov 1967	Cessna 182 N7121E	Unknown, Unknown/Not Reported no coordinates	-	Fatal	4
14 Jan 1967	Beechcraft J35 N7210B	Unknown, Unknown/Not Reported no coordinates	-	Fatal	4
4 Dec 1981	Cessna 182A N5173D	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	3
22 Jun 1980	Cessna 182G N3789U	Missing Aircraft, Unknown/Not Reported no coordinates	Ourgang Flying	Fatal	3
16 Mar 1980	Mooney 720E N7135U	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	3
9 Sep 1979	Cessna 182 N2183R	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	3
17 Sep 1978	Cessna 411 N1EC	Missing Aircraft, Unknown/Not Reported no coordinates	Viking Air SER	Fatal	3
10 Sep 1978	Cessna 185 N4871C	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	3
15 Apr 1978	Cessna 170B N3540C	Missing Aircraft, Unknown/Not Reported no coordinates	-	Fatal	3
4 Jun 1975	Cessna 172M N92354	Missing Aircraft, Unknown/Not Reported no coordinates	American Aviat	Fatal	3
30 Aug 1974	Cessna 172M N5142R	Missing Aircraft, Unknown/Not Reported no coordinates	Holland Flying	Fatal	3
26 Aug 1973	Cessna 150 N50143	Missing Acft, Unknown/Not Reported no coordinates	Isla Grande FL	Fatal	3
23 Nov 1970	Piper PA-24 N9346P	Missing Aircraft, Unknown/Not Reported no coordinates	Showalter Flyi	Fatal	3
8 Mar 1969	Douglas DC-4 N3821	Missing Aircraft, Unknown/Not Reported no coordinates	US Airways Inc	Fatal	3
10 Oct 1967	Piper PA-30 N8051Y	Unknown, Unknown/Not Reported no coordinates	Burnside-Ott A	Fatal	3
6 Aug 1967	Piper PA-28 N8165W	Unknown, Unknown/Not Reported no coordinates	Tropic Aviatio	Fatal	3