TD,
The following legal interpretation was given in response to this question, and is binding. The enumeration of the specific FAR reference has changed, but the intent of the regulation has not, nor has the efficacy of the interpretation. Note that this interpretation was written when six hours of instrument time were also required for currency. While this is no longer a regulation, and the specific currency requirement reference has changed, the interpretation is still binding.
The current reference in the FAR is 61.57(b), which requires that the approach be flown in instrument conditions, either actual or simulated.
I would postulate that while a pilot may break out 100' above minimums, he or she may still continue the approach by reference to instruments without "looking out." This is more a matter of good cockpit discipline than cheating; the PF on instruments should stay on instruments until the required reference is called. The PNF is half-in, half-out, and maintains a visual lookout until the PF identifies the runway environment. At that point a role reversal occurs with the PF looking out, and the PNF on the gages. The PF may choose to remain on instruments to minimums, rather than making a visual transition earlier, and still accomplish the intent of the FAR.
By the same token, who is to know or question the fact that the PF transitioned earlier and continued by reference to the electronic guidance? The intent is clear; that the pilot flying the approach do so by reference to instruments, and fly the complete approach.
Of course, there is no requirement for a minimum time in simulated or actual instrument conditions to qualify the approach. The entire approach must be performed by reference to instruments.
I have ommitted the non-relevant parts of the letter of interpretation, for brevity.
January 28, 1992
(no name given)
This is in response to your October 24, 1991, letter in which you asked several questions about certain Federal Aviation Regulations (FAR).
Second, you questioned how low a pilot must descend (i.e., minimum descent altitude or decision height or full stop landing) on the six instrument approaches he must log to meet the recent IFR experience requirements specified in FAR Section 61.57(e)(1)(i) (14 CFR Sec. 61.57 (e)(1)(i)). You also asked if an instrument approach "counts" if only part of the approach is conducted in actual IFR conditions. Section 61.57(e)(1)(i) states that:
No pilot may act as pilot in command under IFR, nor in weather conditions less than the minimums prescribed for VFR, unless he has, within the past 6 calendar months - (i) In the case of an aircraft other than a glider, logged at least 6 hours of instrument time under actual or simulated IFR conditions, at least 3 of which were in flight in the category of aircraft involved, including at least six instrument approaches, or passed an instrument competency check in the category of aircraft involved.
For currency purposes, an instrument approach under Section 61.57(e)(1)(i) may be flown in either actual or simulated IFR conditions. Further, unless the instrument approach procedure must be abandoned for safety reasons, we believe the pilot must follow the instrument approach procedure to minimum descent altitude or decision height.
Please do not hesitate to contact us if you require any further information in this regard.
Sincerely,
Donald P. Byrne
Assistant Chief Counsel