2016-02-27 IndiGo Airbus A320 below minimum height near Jaipur
When the A320 approached Jaipur when it descended below the approach path until an altitude alert prevent the flight from hitting a multi storey house. All on board remained safe.
IndiGo flight 6E 237 was on a Localizer DME (requires manual vertical guidance by pilot) approach to runway 27 at Jaipur Airport in hazy conditions.
About a minute away from landing, an automatied warning from the EGPWS (Enhanced Ground Proximity Warning System) chimed indicating imminent risk of ground collision.
EGPWS: „Obstacle, Obstacle, Pull Up!“
At an altitude of 480 ft AGL (above ground level), the pilots initiated a go-around within two seconds after the alarm and climbed away safely. The aircraft circled for another approach where they made a safe landing.
Indian investigators of DGAC revealed the A320 missed a 340 ft. tall multi-storey building by only around 100 feet (30 Meters).
The reason for the premature descend to Jaipur and the continuation of the descent below the minimum descision altitude (MDA) of 600 feet was not officially reported.
However, it was concluded the pilots mistook the lines of streets lights as the pattern for the approach lights of runway 27.
This is incident is understood to be the first ‘save’ with the EGPWS ‘obstacle’ mode.
Both pilots have been grounded for the course of the investigation.
METAR Jaipur Airport (VIJP):
METAR VIJP 271330Z 00000KT 4000 HZ NSC 27/06 Q1018 NOSIG=
METAR VIJP 271230Z VRB03KT 5000 HZ NSC 29/04 Q1018 NOSIG=
Date: 2016-02-27 Time: 19:50
Location: VIJP JAI Jaipur
Flight phase: APR – Initial Approach (IFR), Final Approach, all Circuit Patterns, Missed Approach/Go-Around
Damage to a/c: none
Flight no.: 6E 237
From: VAAH/AMD: Ahmedabad To: VIJP/JAI: Jaipur
ICAO | DGAC
Approach simulation of 6E 237 on 2016-02-27
Type: Airbus A320
Age a/c: 6,1 years
Constr. No.: 4216
Occupants & Casualties
JACDEC 25-year Statistics :
- 9th safety occurence for the operator
- 493th safety occurence of type (A320)
- 4th Safety occurence at Jaipur Airport
- 1st safety occurence for aircraft in question
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