Interstate S-1B1 N48027
4 March 1999 · Anchorage, Alaska, United States · Minor injuries
Summary
On 4 March 1999 at about 18:53 local time, a Interstate S-1B1 registered N48027 was involved in an accident near Anchorage, Alaska, United States. One person was on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 18:53
- Classification
- Accident
- Location
- Anchorage, Alaska, United States
- Nearest airport
- Merrill Field (MRI)
- Coordinates
- 61.2095, -149.8894
- Aircraft
- Interstate S-1B1
- Registration
- N48027
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC99LA030
People
1 person had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 1 | 0 |
Probable cause
Fuel starvation resulting from the pilot not understanding the fuel system procedures, and selecting the improper fuel selector position.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
While approaching the airport, the airplane's engine lost power. The pilot applied carburetor heat with no response. He intentionally ensured the fuel valve was selected to the 'left main' position, because he knew there was about five gallons of fuel in that tank. The right tank was empty. The fuel system in the left tank has two outlet standpipes. The 'left main' loses suction with about five gallons remaining. The 'reserve' standpipe allows these remaining five gallons to flow out of the tank when 'reserve' is selected on the fuel valve. The pilot told the NTSB investigator-in-charge (IIC) he did not understand the plumbing for the fuel system. The pilot performed a forced landing at an off airport site. The NTSB IIC confirmed that there was fuel in the left tank, and only a trace of fuel in the right tank.
Quoted verbatim from the NTSB record.
Other Interstate S-1B1 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Mar 2002 | Interstate S-1B1 | Big Lake, Alaska, United States | - | No injuries | - |
| 21 Oct 1986 | Interstate S-1B1 | Eureka Creek, Alaska, United States | - | Fatal | 1 |
| 17 Aug 2013 | Interstate S-1B1 | Lititz, Pennsylvania, United States | Commemorative Air Force - Delaware Flying Wing | No injuries | - |
| 28 Aug 1981 | Interstate S-1B1 | Whittier, Alaska, United States | - | No injuries | - |
| 28 Jul 1974 | Interstate S-1B1 | Williston, North Dakota, United States | - | No injuries | - |
| 11 Mar 1972 | Interstate S-1B1 | Skwentna, Alaska, United States | - | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 May 1999 | Piper PA-24-260 | Juneau, Alaska, United States | - | Fatal | 2 |
| 24 May 1999 | Stinson 108 | Anchorage, Alaska, United States | Glenn A. Ferris | Fatal | 1 |
| 29 May 1999 | De Havilland DHC 2 MK III | Anchorage, Alaska, United States | William A. Sego | No injuries | - |
| 13 Mar 1999 | Cessna 170B | Palmer, Alaska, United States | - | No injuries | - |
| 30 May 1999 | Piper PA-18 | Port Alsworth, Alaska, United States | James T. Ables | No injuries | - |
| 14 Mar 1999 | Cessna 180G | Fairbanks, Alaska, United States | - | No injuries | - |