Cessna CITATION 650 N175DP
9 October 2005 · Madison, Wisconsin, United States · No injuries
Summary
On 9 October 2005 at about 21:30 local time, a Cessna CITATION 650 registered N175DP, operated by Marshall & Ilsley Corporation, was involved in an incident near Madison, Wisconsin, United States. 6 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 21:30
- Classification
- Incident
- Location
- Madison, Wisconsin, United States
- Coordinates
- 43.0596, -88.2304
- Aircraft
- Cessna CITATION 650
- Registration
- N175DP
- Category
- Airplane
- Operator
- Marshall & Ilsley Corporation
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Executive/Corporate
- Phase of flight
- Not recorded
- Route
- Milwaukee → Van Nuys
- Aircraft damage
- Minor
- Weather
- VMC
- NTSB number
- ENG06IA001
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 6 | 0 | 0 | 0 | 6 |
Probable cause
The inadequate design of the engine's interstage transition duct that yielded after the LPT stage 3 blades had separated and allowed the uncontained release of turbine debris. A contributing factor was the separation of a turbine blade.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The airplane was in cruise flight when the pilots heard a bang and the left engine lost power. The flight crew made a precautionary landing without incident. An examination of the left engine revealed a hole in the bottom of the cowling, and the LPT 3rd stage blades were broken. Metallurgical examination of the broken blades identified one that had fatigue progressions. By part number, the broken blades had previously been identified as having high stresses that could lead to the separation of the blade through the airfoil section. The interstage transition duct was bulged out around the LPT 3rd stage and had an almost 180 degree split in the bulged out section at the bottom of the duct. The metallurgical examination of the case and its material revealed that it conformed to engineering drawing requirements and material specifications.
Quoted verbatim from the NTSB record.
Other Cessna CITATION accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 10 Jul 2006 | Cessna CITATION 560 | Hamilton, Montana, United States | - | No injuries | - |
| 19 Dec 2007 | Cessna CITATION 510 | Pittsburgh, Pennsylvania, United States | Stjepan Ban | No injuries | - |
| 22 Jul 2003 | Cessna CITATION 525 | Coupeville, Washington, United States | James C. Ray | No injuries | - |
| 20 Mar 2002 | Cessna CITATION C-750 | Zurich, Switzerland | - | Unknown | - |
| 8 Apr 2001 | Cessna CITATION | Helsinki, Finland | - | Unknown | - |
| 7 Mar 1997 | Cessna CITATION 500 | Medellin, Central African Republic | - | Unknown | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 26 Dec 2005 | Cessna 152 | Pelican Lake, Wisconsin, United States | Spring City Aviation | No injuries | - |
| 22 May 2005 | Cessna C-172M | Madison, Wisconsin, United States | - | No injuries | - |
| 26 May 2005 | Pilatus PC-6 | Sturtevant, Wisconsin, United States | - | Minor injuries | - |
| 14 Aug 2005 | Cessna 150E | Durand, Wisconsin, United States | - | No injuries | - |
| 9 Sep 2005 | Cessna 310Q | Boscobel, Wisconsin, United States | - | No injuries | - |
| 23 Dec 2005 | Champion 7EC | Platteville, Wisconsin, United States | - | Minor injuries | - |