JO 7110.65 — Air Traffic Control
JO 7110.65 3-4-4
PRECISION APPROACH PATH INDICATORS (PAPI)
PAPI systems with remote on-off switching must be operated when they serve the runway in use and where intensities are controlled in accordance with TBL 3-4-4 except:
As required by local facility directives to meet local conditions.
As requested by the pilot. NOTE-
The basic FAA standard for PAPI systems permits independent operation by means of photoelectric device. This system has no on-off control feature and is intended for continuous operation. Other PAPI systems in use include those that are operated remotely from the control tower. These systems may consist of either a photoelectric intensity control with only an on-off switch, or a five‐step intensity system.
REFERENCE-
FAA Order 6850.2, Visual Guidance Lighting Systems.
TBL 3-4-4 PAPI Intensity Setting - Five Step System Step
Period/Condition
5
On Pilot Request
4
Day - Sunrise to sunset
3
Night - Sunset to sunrise
2
On Pilot Request
1
On Pilot Request
*During a 1 year period, twilight may vary 26 to 43 minutes between 25 and 49N latitude.
Retrieved from ecfr.gov on July 20, 2026.