MIA06LA057 · Cessna 525A
Cessna 525A · Accident: airframe, component or system failure during landing
From Marco Island Executive Airport (KMKY) to Tampa International Airport (KTPA)
Event
- NTSB case
- MIA06LA057
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cessna 525A
- Aircraft type
- Cessna 525
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N701TF
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Marco Island Executive Airport (KMKY), Marco Island, FLTo Tampa International Airport (KTPA), Tampa, FL
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing · landing roll
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Airframe, component or system failure
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Directional control › Not possible
- Hydraulic system, line › Fatigue
- Hydraulic system, line › Fractured
- Landing gear, emergency brake system › Failure, total
- Landing gear, normal brake system › Failure, total
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot landed on runway 18L. During the landing rollout, the airplane "swerved" to the right with application of brakes. The pilot corrected back to the runway centerline with rudder. He applied brakes again and the airplane again "swerved" to the right. He again corrected back to the runway centerline and applied the brakes a third time. The airplane again "swerved" to the right. He then applied the emergency brake. The airplane departed the right side of the runway and struck the concrete pad of a runway marker sign. An FAA inspector reported finding hydraulic fluid covering the left main landing gear. He said the main and auxiliary left brake lines were both fractured, and the right main landing gear tire was "shredded off the wheel." According to NTSB's Materials Laboratory Factual Report, the brake line transmits hydraulic fluid and the auxiliary brake line transmits compressed nitrogen. Both brake line fractures were the result of fatigue cracking. No mechanical or other damage was evident on the exterior of the line in the initiation area. Maintenance records dating back to the airplane's date of manufacture revealed the brake lines had never been removed or replaced.
Probable cause
Failure of both the left main and auxiliary brake lines due to fatigue cracking, rendering directional control impossible. A contributing factor in this accident was the airport sign concrete pad.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA06LA057
- Event ID
- 20060227X00241
- Case number
- MIA06LA057
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: e3cfe47a3214bb084bac1d235999ccfb3c1acef6587fd52e1254378fca2bb42e; retrieved 2026-09-22T05:06:24.920Z.