Adam Air Flight 172
Boeing 737-33A · Structural failure upon landing; pilot error
From Soekarno-Hatta International Airport (CGK) to Juanda International Airport (SUB)
Event
- NTSB case
- DCA07WA027
- 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
- Unknown · led by another country; figures from NTSB notifications
- Event fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- 155
- Survivors
- 155
- InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
- 2
- 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
- Airline
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Not recorded
Boeing 737-33A
- Flight
- KI172
- Aircraft type
- Boeing 737
- 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
- PK-KKV
- Operator
- Adam Air
- Onboard fatalities
- 0
- Route
- From Soekarno-Hatta International Airport (CGK)To Juanda International Airport (SUB)
- 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
- Non-U.S., Commercial
- 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
- Not recorded
- Defining eventThe 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
- Not recorded
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Personnel issues › Task performance
From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.
Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.
From the Wikipedia article
Adam Air Flight 172 was a scheduled domestic passenger flight from Soekarno–Hatta International Airport to Juanda Airport, Surabaya, Indonesia. On 21 February 2007, the Boeing 737-300 operating the flight made a hard landing at Surabaya and suffered cracking of the fuselage in the middle of the passenger section. All six of Adam Air's remaining 737s were immediately grounded, though five of them were back in regular service later that year. This incident caused further concerns regarding the safety of flights operated by Adam Air, which had received much criticism after the crash of Adam Air Flight 574 on 1 January 2007.
Accident
The plane fractured upon landing at Juanda International Airport, with the fuselage breaking in the middle of the passenger section. The landing was particularly hard, with baggage being ejected from cabin lockers into the cabin space. The tail section of the plane was bent down compared to the rest of the plane. Immediately after the incident, other flights headed for the airport were diverted. Adam Air's fleet of Boeing 737-300s was grounded for safety inspections in the interim. In the night after the accident, and before the NTSC had completed its investigation, Adam Air repainted the aircraft, covering the original orange livery with a plain white exterior. The Director of Safety of Adam Air denied that the painting was intended to cover up any evidence, saying that the airline was handling the aircraft in accordance with procedures. In the immediate aftermath, some passengers cancelled their flights with Adam Air, claiming that they were worried about the aircraft at the airline. All of these cancellations were refunded in full.
Investigation and cause
Investigation
The accident was investigated by the National Transportation Safety Committee (NTSC). Investigators compiled data from the Indonesian weather agency and the air traffic control center in Surabaya in an attempt to determine the cause. Officials state the aircraft did pass required safety checks before its departure. Boeing announced that it would also provide technical assistance to both the authorities and the airline during the investigation.
The final report from the NTSC stated that the probable cause of the accident was an excessive sink rate upon touchdown, following an unstabilised approach. In the report, the NTSC noted that the approach was unstable below 200 ft, with a vertical speed occasionally greater than 2500 ft/min (13 m/s). The vertical acceleration on landing was measured at 5 g. Additionally, the aircraft initially touched down with the right main gear about 4 m outside of the runway edge.
The investigation further revealed that no technical malfunction occurred on the aircraft before touchdown.
The flight crew was criticized for not maintaining a sterile cockpit during the landing, with excessive nonflight-related discussion going on throughout the flight.
Text from the Wikipedia article “Adam Air Flight 172” (revision 1357435340, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article
Sources
Wikipedia article: Adam Air Flight 172
- Article
- Adam Air Flight 172
- Revision
- 1357435340 · 2026-06-02 · retrieved 2026-09-18
- Wikidata
- Q348349
- Licence
- Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
NTSB record DCA07WA027
- Event ID
- 20070315X00297
- Case number
- DCA07WA027
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Where each value comes from
- Record
- Wikipedia article "Adam Air Flight 172" (page 9679328, revision 1357435340); merged with NTSB case DCA07WA027 (events / aircraft)
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- Wikipedia: Wikipedia article coordinates
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports); gaps and aircraft details from NTSB record DCA07WA027
- Operation
- airline flight number in the infobox
- Fatalities
- Wikipedia: Wikipedia infobox: aircraft fatalities
- Ground fatalities
- Wikipedia: not stated in the Wikipedia infobox
- Summary
- Wikipedia infobox: summary
Source notes (2)
- One occurrence in two sources, merged: the Wikipedia article "Adam Air Flight 172" and NTSB case DCA07WA027, matched by the same aircraft registration and date. For this event outside the United States Wikipedia's values are used where the two differ; each value names its source.
- No bulk values were replaced by the NTSB case API.