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Royal Dutch Airlines Flight 662

20 Apr 1997 · Houston, TX, United States

Boeing 747-300 · Incident: collision between aircraft (not in flight) while taxiing

From George Bush Intercontinental Airport (IAH) to Amsterdam Airport Schiphol (EHAM)

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Narrative check · The NTSB narrative appears to contradict this record's aircraft involved. Values are shown as recorded, not corrected; compare with the narrative.

Event

NTSB case
FTW97IA161
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
Incident
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
0
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
Visual Meteorological Cond

Boeing 747-300 Narrative disagrees

Aircraft type
Boeing 747
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
PHBUL
Onboard fatalities
Unknown
Route
From George Bush Intercontinental Airport (IAH)To Amsterdam Airport Schiphol (EHAM), Amsterdam
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 129: Foreign
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
Taxi · to runway
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
Collision between aircraft (not in flight)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Minor

Cause areas

  • Copilot/second pilot › Clearance, not maintained

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

An Air France Boeing 767 was number one in sequence for takeoff at the runup area for runway 14L. The Air France flight reported that they were not ready for takeoff. KLM flight 662 was cleared by ATC to taxi into position and hold for departure on 14L. While taxiing around the standing Air France 767, the extended right outboard leading edge flap from the KLM 747 impacted the left wing tip of the Air France 767, resulting in minor damage to both airplanes. Airport operations personnel reported that no fuel was spilled from either aircraft and both airplanes taxied back to their respective gates. Air France's maintenance personnel replaced the left wing navigation light assembly from the 767 and the airplane was released and departed approximately 3 hours after the intended departure time. According to the FAA inspector at the site, the wing tip is visible from the cockpit of the 747. Additionally, he stated that the side window was crazed. The scheduled departure time for KLM flight 662 was 1540.

Probable cause

The first officer's failure to maintain clearance while taxiing around a standing airplane.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record FTW97IA161
Event ID
20001208X07702
Case number
FTW97IA161
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (5)
  • 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. 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: 1915575c269d878c57df84a02b5d2d774e38013fdf357bffadd954869a952b9f; retrieved 2026-09-18T17:37:51.104Z.
  • The NTSB's operator name is blank for PHBUL; the operator shown is the name the NTSB records it doing business as.