The 1998 Occidental Petroleum Boeing 737 crash occurred on May 5, 1998 a Boeing 737-282, leased from the Fuerza Aérea del Perú (Peruvian Air Force) and servicing a charter flight for Occidental Petroleum, crashed in rainy weather while on approach to Andoas, a town in Peru close to the border with Ecuador, killing 75 people on board; eleven passengers and two crew members survived.

Occidental Petroleum chartered the aircraft to transport workers to the Andoas oil field. The aircraft was registered as FAP-351 (c/n 23041 / m/n 962) and had only entered service with the Peruvian Air Force a few weeks before the crash.

The aircraft crashed around 21:30 local time while on an NDB approach to Alférez FAP Alfredo Vladimir Sara Bauer Airport at Andoas. The aircraft crashed three miles (4.8 km; 2.6 nmi) short of Andoas. It was scheduled to arrive at Andoas at 21:17 local time.

Medical teams were delayed more than a day in reaching the crash site due to poor weather, with the survivors being carried on stretchers in torrential rain to a medical post in Andoas because the weather prevented their evacuation by helicopter. Later, a Peruvian Air Force Boeing 737 rescue aircraft flew to Andoas, carrying a medical team, crash experts and police investigators.